Air Defence RADAR Simulator Game

[Asid]

Command the sky in a tense real-time strategy simulation where you manage a nation's air defenses. Analyze radar contacts, scramble interceptor jets, and make split-second decisions to protect your airspace from hostile threats.


Official Site: Here
Steam: Here


Manual: HERE
Theatre: real-world terrain maps UK
Turns: Real Time
AI: Yes
Single-player: Yes
Multiplayer: No


Trailer

About This Game

TAKE COMMAND OF THE NATION'S AIR DEFENSE

Step into the RAF ops room — take the chair as an Identification Officer or Weapons Controller. Build the picture, scramble QRA, and own the intercept.

The sky is your battlefield. A hostile contact appears on radar. Is it a civilian airliner off course, or the prelude to a full-scale attack? Your job is to find out.

Air Defender is a high-stakes, real-time strategy simulation that puts you in the command chair of a national Air Defence network. From a top-down strategic view, you are the unseen hand responsible for detecting, identifying, and intercepting airborne threats. This is not a dogfighting game; you are not a pilot. You are the commander with access to the capabilities of multiple roles in the bunker, and the fate of the nation rests on your split-second decisions.

Analyse radar returns, scramble your Quick Reaction Alert (QRA) fighters, and manage your assets to protect your airspace. Every choice matters, and the consequences of failure are devastating.


Key Features

• High-Fidelity Command & Control: Take on the role of an Air Defense Commander. Manage a detailed radar network, interpret IFF (Identification Friend or Foe) data, and issue commands to your forces.
• Scramble QRA Interceptors: Launch your fighter aircraft to investigate, shadow, or engage hostile contacts. Manage their fuel, weapons, and mission objectives in real-time.
• Deep Information Warfare: Utilise authentic-inspired systems to build a complete picture of the battlespace. Monitor flight plans, analyse electronic warfare (EW) intelligence, and stay one step ahead of the enemy.
• Intelligent Enemy AI: Face a dynamic adversary that will probe your defenses, launch coordinated attacks, and adapt to your strategy, creating a challenging and replayable experience.
• Play Endless or complete Training Missions to become Combat Ready. In Endless, you will be challenged to spot the bad guys, ensure they don't sneak through, if you do, it could lead to all out war.

Welcome to the command center. The watch is yours.

[Asid]

[Asid]

Roadmap

We're on the way to Early Access on Steam for PC.

• AWACS/Datalinks functionality
• QRA launch
• Intercept behaviour
• Aircraft redeployment across UK airfields
• Voice-overs for commands
• Internal Comms
• ASMA comms
• Training Scenarios

[Asid]

Bug Fixes & Additions
Wed, 15 April 2026



April Update

Air Defender Changelog - Version 0.6.8.49 - April 2026


This is a major update bringing enemy variety, a comprehensive intelligence reporting system, an expanded Guide panel, intercept status updates, shift handover, supply coaching, and dozens of fixes across interceptors, radar, voice, and training.


New: Enemy Variety System

Enemy aircraft now employ a wider range of deception tactics. What you see on your radar may not be what it appears. Intelligence reports from various sources across the UK will help you identify threats -- pay attention to the clues. Difficulty setting affects how challenging these encounters are to detect.

New: Intel Reports

The ASMA console now posts intelligent, data-driven reports from across the UK.

- Real Aircraft Data: Every observer report -- RAF veterans, air cadets, coastguard, police, North Sea oil rig crews, ATC squadrons, GCHQ -- references the contact's actual altitude, speed, heading, and approach direction. Reports never contradict your radar picture.

- Expertise-Aware Language: RAF veterans use proper military terminology. Civilians describe what they see. Air cadets check their Jane's guides. The source shapes how it's written.

- Contact Positions: Every report includes where the contact is (e.g., "30nm north of Edinburgh"), so you can correlate sightings with tracks.

- ATC Call Intelligence: CALL ATC now includes a RELATED INTELLIGENCE section -- observer sightings, SIGINT assessments, registry checks, and ATC anomalies for the queried track.

- Your Squadron: 849 real RAF Air Cadet squadron numbers and locations across 34 Wings are included. When an enemy aircraft overflies your town, your squadron may be the one to spot it.

- Radar-Gated IDO: The Identification Officer only reports contacts visible on the radar scope. Aircraft beyond coverage are reported by maritime and ground observers, not the IDO.

New: Guide Panel

The Guide panel has expanded from 9 to 12 tabs with comprehensive coverage of game mechanics.

- Overview: Game setting, your role as an Air Defender, the core control loop, and what difficulty affects.

- Scoring: Score meter rules and key scoring mechanics.

- QRA Operations: Scramble procedure, the 4-minute delay, fuel states, how to task a tanker, and RTB.

- ROE: Mission-based weapon authorisation rules, tension state rules of engagement (Peacetime, Heightened, Critical) with the current state highlighted, aspect gating, kill probabilities, ROE violations, and the full escalation sequence -- written in plain operational English.

- Procedures: Reorganised into 7 named scenario types for clearer reference.

- Opens on Overview by Default.


New: Shift Handover

At the start of a new session, some IFR civilian contacts are pre-classified as Assumed Friendly by the previous watch, reducing initial identification workload.


New: Intercept Status Updates

Right-click an interceptor and select STATUS to get a mission update: current phase, bearing and range to target, and fuel state -- posted to the ASMA console with voice comms.


New: Supply System Discoverability

- Low Ordnance Coaching: When weapons run low at a base, the ASMA console now coaches you to dispatch a supply mission. The NO ORDNANCE warning also includes this hint.

- Redeploy Missile Count: When redeploying combat aircraft, destination bases now show their current missile count with colour coding (green = can arm a pair, yellow = can arm one, red = insufficient).


Improvements

- Track Classifications Persist: Your identification work -- Hostile, Suspect, Unknown, Assumed Friendly, X-ray, Zombie -- now survives saving and loading. Previously all classifications were lost on reload.

- Weapon Indicators: Interceptor tracks now show G for guns, R for radar-guided missiles, and H for heat-seeking missiles (e.g. G180/R4/H2). Clearer at a glance.

- Panel Resize from Top: All panels can now be resized by dragging their top border. Side and bottom drag margins are also slightly wider for easier selection.

- Spoofer Cover Integrity: Spoofers now keep their civilian cover presentation much more consistently until visual identification, making deception play out more convincingly on the scope and in Flight Info.

- Military Filter Gating: Enemy-looking contacts no longer leak into the Military filter before you have genuine identification grounds to treat them as military.

- Readable Radar Symbology: Compact labels, leaders, hook boxes, origin circles, and radar/L11 history dots have all been tightened up for a clearer and more stable radar picture across zoom levels.

- Civilian Traffic Recovery: Atlantic and Scottish north-west civilian IFR routes now stay visibly populated, keeping the wider air picture healthier during longer sessions.

- Local Observer Coverage: Local intelligence reports now surface more reliably when unidentified enemy aircraft overfly the UK, with stronger regional coverage and better source variety.

- Show Of Force Presentation: Show of force now reads as a much clearer visible manoeuvre instead of feeling like an invisible state change in the intercept flow.

- Tanker Recovery Flexibility: Tankers returning home can now still be redirected into tanker-to-tanker refuelling before landing starts, then continue their recovery afterwards.

- Interceptor Track Continuity: Friendly interceptor tracks now stay visible more reliably during airborne refuel and RTB transition periods instead of briefly dropping off the scope.

- FIR Escalation Procedure: The complete escalation sequence (escort, show of presence, show of force, turn-away warning) now works correctly for all enemy types approaching the UK. Pilot reports "aircraft not compliant" at the correct time during the procedure.

- Easter Egg Aircraft: Hidden aircraft unlocked through Operation Silent Bunny now carry correct weapons loadouts and can be used as fully combat-capable interceptors.

- QRA Launch Cancellation: Pending QRA launches can now be cancelled during the scramble countdown.


Bug Fixes -- Interceptors

- Escalation Completion: QRA interceptors no longer get stuck after completing the full escalation sequence against Suspect targets. Interceptors now correctly resume shadow or escort formation.

- Visual Identification: QRA interceptors assigned to intercept Suspect contacts now properly complete visual identification before engaging in Critical tension.

- RTB Speed: QRA interceptors on return to base now respect Buster, Cruise, and Eco speed settings from the right-click menu.

- Engage Orders: QRA engage orders no longer refuse when retasking to the same target.

- Refuel from CAP: QRA interceptors ordered to refuel while on CAP now correctly leave the patrol pattern and proceed to the tanker.

- Identify Completion: QRA interceptors on Identify missions no longer immediately return to base after identification. They now continue shadowing the target, allowing the normal intercept and escalation procedure to proceed.

- Redeployed Interceptors: Redeployed interceptors no longer return to base immediately on launch.

- Subsonic Speed Limits: Subsonic interceptors no longer exceed their maximum speed when tasked to engage fast targets.

- 4-Ship Radio Calls: In 4-ship launch groups, duplicate radio calls and voice gaps during the escalation sequence are now resolved.


Bug Fixes -- Radar and Tracks

- Track Designation Persistence: Track designations (Suspect, Hostile, Unknown, etc.) now persist when tracks drop off and reappear on radar.

- Civilian Aircraft Names: Civilian aircraft now display their actual aircraft type name (e.g. Boeing 737, BAe Jetstream 41) instead of a generic classification.

- Missile Track Cleanup: Missile tracks disappear immediately from the radar display after a confirmed kill.

- Bomber Track Freeze: Enemy bomber tracks no longer freeze on the radar display when a radar station is toggled off and on.

- Multiple SEAD Tracks: Multiple SEAD aircraft now appear as separate tracks instead of one flickering track.

- Hidden Aircraft Tracks: Hidden aircraft tracks now behave like normal radar tracks and carry the correct weapons loadout.


Bug Fixes -- ASMA Console

- Scroll Stability: The ASMA console no longer snaps scroll to top when new messages arrive.

- Visual ID Spam: VISUAL ID messages no longer repeat excessively during civilian identification.

- Sortie Tabs: Sortie tabs now correctly disappear when flights land and recover at base.

- Premature Identity: Aircraft identity is no longer revealed prematurely in ASMA messages before visual identification has been completed.

- INTEL Filter Tab: GCHQ assessments and SIGINT reports no longer appear in the Aircraft filter tab.


Bug Fixes -- Voice and Radio

- Emergency Squawk Codes: Emergency squawk codes (7700, 7500, 7600) now persist for the full duration of the emergency instead of being replaced after a few seconds.

- Weapons Controller RTB Response: The Weapons Controller "copied RTB, base is BRA" response now only plays when the pilot initiates RTB, not when the Weapons Controller ordered it.

- FIR Escalation Voice: FIR escalation voice calls now work correctly for all approach directions.


Bug Fixes -- Training

- Training Audio: Training intro voice now stops immediately when clicking Back from the selection screen.

- Training Progress Recovery: Training progress now automatically recovers when switching between Proton or Wine compatibility layers on Linux.


Linux and Proton Fixes

- Window Resizing and Panning: Window resizing and mouse panning now work correctly on Linux (Wayland).

- Regional Clock: The regional clock now appears reliably on every game start via Linux/Proton.

- Keyboard Hotkeys: All keyboard hotkeys (F-keys, time controls, numpad, Tab cycling) now work reliably on Linux and Wayland systems.

[Asid]

Bug Fixes & Additions
Fri, 1 May 2026



May Update
Air Defender Changelog - Version 0.6.9.94 - May 2026


A large bundle of fixes covering campaign endings, the end-of-game summary and soundtrack, the identification procedure on Hard difficulty, Russian deception, stuck aircraft, AWACS and interceptor reliability, civilian traffic during airspace closure, and a long tail of quality-of-life issues.

Campaign End & Summary Screen

- Critical Campaign Won't End After The First Wave: Clearing the opening wave no longer ends a Critical campaign early — victory waits until the full assault has been spent.

- "All Threats Cleared" Fires At The Right Time: The all-clear message now waits until every enemy has left the map, every inbound bomb has detonated, and any queued waves have finished spawning.

- Airspace Stays Closed Until It's Really Empty: Airspace no longer reopens while escort fighters are still in the air — it waits for every enemy aircraft to clear, not just the bombers.

- Honest Victory Framing: The end-of-game summary now tells the truth about cost — "DEFENCE SUCCEEDED" only for clean wins, with "DEFENCE HELD — AT GREAT COST" or "NATION DEVASTATED — DEFENCE HELD" for higher-casualty outcomes.

- No More Duplicate Cities In The Summary: Cities hit more than once are listed once with a strike count, instead of repeating with the same casualty number on every row.

- Submarine Debug Panel Hidden During Armageddon: The launch debug panel no longer overlays the formal end-of-game screen.

Hard Difficulty Identification Procedure

- Procedure Bonus Now Awarded For Hostiles: Identifying a hostile aircraft (TU-95, spoofer, military) using the full 4-step procedure now correctly awards the procedure-followed bonus instead of unfairly penalising you. Hostile aircraft don't have a Mode 3 code, so ATC will reply "no Mode 3 code assigned" — that response now correctly counts as the ATC step.

- Procedure Guide Rewritten: The Help / Guide Procedures tab now spells out the full 5-step identification sequence in order, calls out the ATC hotkey explicitly, and explains the "no Mode 3 code assigned" response so you know what to expect.

Russian Deception

- True Speed On Disguised Aircraft: A Russian aircraft pretending to be a slow civilian type (e.g. a Su-27 disguised as a Robinson R44) now shows its true speed on the data block — the speed/registry mismatch is the gameplay clue.

- Cover Identity Consistency: When a Russian aircraft is masquerading as a civilian, ATC chatter and the radar tag now agree on the cover identity instead of contradicting each other.

- Hostile Type Revealed When EW Is Up: When the EW network reveals hostile aircraft during war declaration, the data tag now shows the bomber type (TU-22M, TU-95, SU-24, MiG-31) as expected. Russian spoofers continue to have their type hidden by design.

Stuck Aircraft

- Bombers Egress After Strike: Enemy bombers now egress outbound after their strike run instead of getting stuck circling over the target.

- Civilians Can Be Shot Down: Enemy missiles that hit civilian aircraft now correctly destroy them, with the civilian-shoot-down penalty applied as expected.

Interceptors, AWACS & Tankers

- AWACS Match QRA Scramble Cadence: AWACS now wait 4 minutes for simulated taxi before the takeoff roll instead of launching instantly.

- Waddington Takeoffs No Longer Stuck: Departures no longer get stuck on "Queued for takeoff" after an AWACS or Nimrod has launched and returned — the takeoff queue now self-recovers.

- Realistic Cruise For Redeploys: Redeploying interceptors between bases now defaults to cruise speed instead of full afterburner. You can still hit BUSTER mid-flight if you want them home faster.

- 4-Ship Intercept Sanity Check: Launching a 4-ship intercept now checks the secondary target before launch — if no second target is reachable, all four go after the primary instead of two circling the airfield.

- Diverted Fighter Comms Work: Retasking an airborne fighter to a new target now properly hands it onto the new target's radio channel, so visual ID, challenge, and escalation calls play through.

- Staggered Tanker Takeoffs: Tasking several tankers from the same base now spaces them by about 25 seconds instead of all rolling at once.

- Sea Harrier Loadout: Sea Harrier FA.2s out of RNAS Yeovilton now carry a realistic 1998 CAP loadout (2 AMRAAM, 4 AIM-9L).

Civilian Traffic During Airspace Closure

- Civilians Land Cleanly After Diversion: Diverted civilian aircraft now descend all the way to the runway instead of vanishing mid-descent.

- No New GA Departures During Closure: General-aviation aircraft are blocked from taking off the moment airspace closes.

Compliance & Tracks

- Compliers Egress Cleanly: Russian aircraft that have complied with show of force and headed home no longer freeze on the radar at 0 knots.

- Multi-Sensor Track Survival: Switching off a single radar no longer makes hostile or suspect tracks flash and disappear when AWACS or another ground radar is still tracking them.

- No Track Number Reuse: When a hostile or suspect track disappears under unusual conditions, the next aircraft to spawn no longer reuses its track number.

Quality Of Life & Stability

- Save File Integrity: Save files with damaged or tampered data are refused cleanly at load.

- Settings Panels Scroll Properly: The keyboard bindings list and the Hercules/Chinook supply window now scroll cleanly so action buttons stay reachable on small windows.

- Button Rapid-Click Protection: Action buttons no longer trigger twice when clicked quickly.

- Steadier FPS On Busy Scenes: Frame rate is more consistent when many aircraft are active.

[Asid]

Bug Fixes & Additions
Sat, 23 May 2026



May (2nd) Update

Air Defender Changelog - Version 0.7.0.0 - 23 May 2026

A major reliability and polish update covering interceptor behaviour, voice and radio procedure, save and load, map settings, scoring, civilian and emergency handling, and difficulty options.
New: Difficulty-Scaled Fuel Consumption

Interceptor fuel burn now adapts to your selected difficulty setting.

•     Hard: Realistic period-accurate baseline (unchanged).
•     Normal: Half rate — interceptor sortie endurance doubles.
•     Easy: One-tenth rate — extended endurance for relaxed sessions.
•     Warnings Unchanged: Joker, Bingo, PAN-PAN and MAYDAY warnings still trigger at the same fuel percentages — they just take proportionally longer to reach.

Save & Load Reliability

•     Saves Survive Process Kill: Saves are now written safely — closing the game (or losing power) part-way through a save no longer leaves a corrupted file behind. The previous slot's contents remain intact until the new save is fully written.
•     Rapid SAVE Click Safety: Clicking SAVE rapidly no longer risks two saves overwriting each other.
•     Corrupted Save Entries Visible in Load Menu: Saves with malformed files no longer silently disappear from the Load Game list — they are shown with an error indicator so you can spot them and choose to delete.
•     Save Game Click Reliability: Loading a save no longer silent-fails when the on-disk filename differs from the in-game display name.
•     Mid-Mission State Preservation: Save/load now correctly preserves a wide range of mid-flight state: AWACS approach gates, tanker fuel-flow rates, Nimrod departure-leg sequencing, enemy aircraft RTB position, enemy bomber turn state and evasion timers, in-flight missile guidance parameters, nuclear weapon damage profiles, and many smaller details that previously reset to defaults on load.
•     Chinook Supply Missions Survive Save/Load: In-flight Chinook HC2 supply aircraft no longer disappear seconds after loading a save — cargo, ordnance, and origin-base accounting are all preserved.
•     Crash Sequence No Longer Loops On Load: Loading a save taken at the exact moment an interceptor was crashing from fuel exhaustion no longer re-fires the MAYDAY voice and squawk 7700 repeatedly after restoring.
•     Save List Loads Faster: Browsing the Load Game menu with many save slots is now noticeably faster — the menu reads just enough of each file to show its summary instead of parsing the whole save.

QRA Interceptor

•     Drop Tanks for Tornado F3 & Phantom FGR.2: External fuel tanks are now correctly accounted for in the fuel display and burn rate calculations for these aircraft. Sortie endurance now matches the period-accurate published figures.
•     Military Fuel Realism Pass: Military aircraft fuel burn rates and tank capacities have been reviewed and corrected against published 1998-era figures across the fleet.
•     Aircraft Fuel Burn Time-Scaling: Aircraft fuel burn now scales correctly with the in-game time-acceleration setting — running at 5x no longer leaves aircraft burning fuel as if at 1x.
•     Fuel Display Consistency: The Active Operations panel and the radar track block now show the same fuel percentage for the same aircraft (previously could disagree by 25%+ for Tornado F3).
•     Wingman No Longer Flies On At Zero Fuel: A surviving wingman of a QRA pair whose lead aircraft has crashed will now correctly declare emergency and divert/eject instead of continuing to fly indefinitely on empty tanks.
•     Wingman Spawns With Correct Fuel: A wingman scrambled in a CAP pair no longer joins at a stale fuel percentage from a previous sortie.
•     Solo Sortie Voice Calls: Solo single-ship sorties (no wingman) now hear the full controller AAR (refuelling) voice exchange that paired sorties always did.
•     Defender Retask Cascade: Manually retasking an interceptor against an inbound shooter now reliably brings the paired mate along too, instead of occasionally leaving them on the wrong target.
•     Force-Intercept on Low Fuel: Manually retasking an interceptor back onto a hostile after a tanker request has appeared no longer makes the sortie flicker between target and tanker, loop SHOW OF PRESENCE voice, and stack repeated voice rows in ASMA. The auto-divert now correctly recognises your commit-despite-low-fuel choice and stays out of the way until the target changes, the aircraft RTBs, or fuel reaches BINGO emergency.
•     Track Visibility During Intercept: Some interceptor tracks could drift out of view on the radar display during the intercept procedure — all friendly interceptor tracks now remain visible at all times.

Voice & Intercept Procedure

•     JUDY Loop Fix: Identifying a civilian after Controller-Confirm tasking no longer causes the JUDY / Controller-confirm voice exchange to loop indefinitely.
•     Pilot JUDY Timing: The pilot JUDY call no longer fires at scramble time — it correctly fires only when the interceptor reaches radar contact range with the target, which also resolves the duplicated controller "Copy Judy" voice and a premature RTB on civilian intercepts.
•     ASMA Brevity Expansion: ASMA console messages no longer show duplicated brevity phrasing — JUDY and similar military brevity codes display the expanded explanation exactly once.
•     Single Voice Source: The pilot JUDY voice and the matching ASMA log entry are now produced from a single source, so they no longer occasionally fire twice when different parts of the game briefly disagreed about who should speak.
•     Splash Voice Improvements: Splash calls at kill sites no longer report the same target as splashed twice, and the "shooter unknown" case now correctly identifies the shooter where possible.
•     Splash Per-Channel Exclusivity: Kill-confirmation voice ("splash") now only plays for the sortie currently selected on the radio panel. Other sorties' kills no longer bleed into your audio when you are focused on a different sortie.
•     Sortie Radio Continuity: Sortie radio comms no longer drop in and out during phase transitions like a tanker rendezvous. The pilot's "vector to tanker" request, the controller's bearing/range response, and the pilot's "proceed to tanker" call now play as a single continuous exchange without silence gaps.
•     Channel Switch Voice Resumption: Switching the radio panel from a QRA or AWACS sortie to a CAP pair and back no longer leaves you in silence — the original sortie's voice exchanges resume cleanly on switch-back, without bleeding across channels.
•     Pilot Mayday on Every Emergency: Interceptor pilot mayday announcements now fire correctly for every emergency, not just fuel exhaustion. The pilot's "{callsign} mayday mayday mayday" call is heard first, followed by the controller's response — matching standard radio procedure for scenario-driven emergencies, save/load-restored emergencies, and squawk overrides.
•     Controller Replies Stripped of Pilot Prefix: Controller-side emergency-airfield replies no longer accidentally prefix themselves with the pilot's callsign.
•     BRA Channel Cleanup: BRA (Bearing-Range-Aspect) callouts no longer continue to play on a sortie channel after that sortie has been cleared or retasked.
•     Post-Retask Voice on Repeat Missions: Post-compliance pilot voice ("aircraft now complying", "roger RTB") now plays correctly after retasking the same QRA sortie to a second target of the same type.
•     Intercept Progression After JUDY: Intercepts now reliably progress through the full procedure (escort, show of presence, show of force, turn-away warning) after the pilot's JUDY call. Previously the procedure could stall silently with the interceptor sitting alongside the target indefinitely — the full sequence now fires through to completion.
•     Suspect-Mark Pursuit Fix: Marking a contact as Suspect via the ident bar no longer leaves the QRA interceptor unable to close — speeding up, then slowing down, never catching the target — with the escalation procedure stuck. The interceptor now settles into formation and the full escalation runs end to end.
•     Decision Dialog Safety Timeout: Decision dialogs that were waiting on something that never arrived can no longer

hold the intercept indefinitely — a safety timeout now releases the dialog so the procedure proceeds.

Civilian Emergencies

•     Emergency Squawks Persist: Emergency squawks (7700 / 7600 / 7500) on civilian aircraft now correctly persist instead of being overwritten by routine controller squawk reassignment.
•     Correct Procedure for Each Emergency: Civilian emergency intercepts now play the correct voice procedure for the declared emergency type instead of occasionally playing the wrong one.
•     Emergency Aircraft Identity Preserved: Civilian aircraft with declared emergencies (7500 / 7600) are no longer automatically reclassified to Hostile during intercept.
•     Procedure Safety Timeouts: Civilian emergency intercept procedures now have safety timeouts so the procedure cannot stall silently waiting for a condition that never arrives.
•     Active Ops Emergency Row Clears: The Active Operations emergency row no longer stays yellow / red after the emergency has resolved.

Map & Map Overlays

•     AARA and Danger Overlays Persist: Player choices for AARA and Danger area overlays now persist across in-app menu cycles, matching the airfield, city, strategic, and navaid overlays.
•     Saved Map View Restored: Returning to the map after a menu cycle no longer clobbers the saved zoom and pan position.
•     Coastline Visibility on Intel Graphics: The UK map coastline is now reliably visible on systems with Intel integrated GPUs that previously showed a blank background.
•     Map Display Toggles Saved: Player choices for which map feature categories are visible now persist across sessions.

Russian Deception & Enemy AI

•     Campaign Continuity Across Saves: Campaign waves now continue to arrive correctly after a save/load mid-campaign, and campaign victory is correctly detected when you have completed the objective.
•     Civilian Callsign Sync: Civilian aircraft callsigns now stay in sync across all panels — previously some civilian aircraft could show one callsign on the track block and a different one in Flight Info after loading a save.
•     Civilian Route Restoration: Stationary civilian aircraft, and civilian aircraft with broken or empty routes, now correctly restore on save/load instead of teleporting or hanging in place.
•     Hostile Cruise Missile Kill Not Penalised: Shooting down an inbound hostile cruise missile no longer triggers the civilian-kill penalty.
•     Hostile Aircraft Type Hidden Until ID: The Flight Info panel TYPE field no longer leaks the real aircraft type for unidentified hostiles. The TYPE field is blank until the contact is positively identified.
•     Disguised Aircraft Save/Load Stability: Disguised aircraft tracks no longer flicker in and out of view after save/load.
•     Visual ID Updates Every Panel: When interceptors visually identify a disguised contact, the revealed type now appears on the track label, the Flight Info panel, and the Aircraft Info tab consistently — no more contradictory readings between panels.
•     Aircraft Type Display Consistency: The aircraft type now displays the same value across the Flight Info panel, the radar track block, and the ASMA console.
•     Post-Compliance Turn-Away: Compliant disguised aircraft now turn away on a bearing that actually exits UK airspace from inland positions instead of pointing back over the country.
•     Show of Force Maneuver Reliability: The show-of-force cross-ahead maneuver now executes consistently on repeat missions, with both voice and maneuver firing together rather than the maneuver dropping silent

ly.

Scoring & Stats

•     Enemy + Civilian Destroyed Counts Persist: The aggregate destroyed counts shown after a session now survive save/load correctly.
•     Mid-Campaign State Survives Save/Load: Your campaign progress no longer carries over to unrelated saves, and loading a mid-campaign save no longer resets your progress to the start of the campaign.

Map Content & UI

•     Keyboard Shortcuts Respect Typing: Hotkeys no longer fire while you are typing in a text field (e.g. the save-game dialog), eliminating the rare bug where the map could pan autonomously after using Ctrl+A in a dialog.
•     Aircraft Data Tab Updates Live: The Aircraft Data tab on the flight-plan track popup now updates within half a second of a positive identification instead of lagging by several seconds.
•     Track List Panel Stability: Track List panel no longer briefly flashes errors or fails to draw in unusual configurations.
•     Tanker Callsign Consistency: Tanker callsigns now display the same value across the Track List, the on-map track block, and the Active Operations panel.
•     Flight Info Panel Polish: Various Flight Info panel display improvements (TYPE hiding for unknown hostiles, callsign formatting, and status accuracy at mid-mission states).

Stability

Many smaller fixes have been folded in along the way — invisible during normal play but cumulatively reducing the chance of rare crashes, voice cutouts, save/load glitches, and frame-rate hitches under unusual conditions.

[Asid]

Major Autumn Update
Fri, September 11, 2026



Voice Comms

Air Defender Changelog

Version 0.8
The biggest update to Air Defender since release, and everything since 0.7.0.0 is in it. Every pilot and controller has been re-voiced, interceptors now describe what they see, intercepts of formations and civilian traffic run through to a proper conclusion, airborne aircraft can be diverted to another airfield and relaunched, and fuel burn now scales with difficulty. Underneath sits a long list of fixes from your reports plus intercept procedure, radio, radar, save and performance improvements.

New: Full Pilot & Controller Re-Voice
Every radio call in the game has been re-recorded for realism.

- Pilots Speak Naturally: Interceptor pilots now speak their full callsign and flight number in a single natural take, with authentic British accents, across intercept, weapons, fuel, tanker and identification calls.

- Three Pilot Voices: Each sortie is assigned one of three pilot voices, so different flights sound like different people. Fox, RTB, Bingo, Joker, PAN-PAN and MAYDAY calls all use the pilot's own voice.

- Two Weapons Controllers: A second Weapons Controller now shares the watch, alternating with the first from sortie to sortie and heard through his own distinctive radio channel.

- Full BRA Calls: The Weapons Controller now opens every intercept call properly: your callsign, the Buchan station ident, a Bandit or Bogey preamble, then bearing, range, altitude in feet and aspect. Wording varies from call to call, calls pace themselves correctly at time acceleration, and picture calls reach out to 200 nautical miles.

- New Controller Calls: "New picture" when you retask airborne interceptors, a crossing call as fighters close within 30 miles, "Descend to target altitude" against low-flying targets, varied descent reports, and conflicting-traffic advisories to which the pilot responds, searches and reports visual.

- Every Airfield Named: All 61 airfields and diversion destinations, the Leeming, Leuchars and Coningsby ops rooms, all seven tanker callsigns and every compass sector in Track of Interest reports now have their own consistent voice lines.

New: Visual Identification

- Pilots Report What They See: Once a flight has called TALLY, the controller asks for identification and the pilot describes the aircraft: the operator, engines and registration, the number and type of any fighter escorts, or the Russian airframe hiding under a false callsign right down to the aerials on its back.

- Natural Registration Reads: Registrations are read as a single natural transmission for every one of the 633 civilian aircraft in the game.

New: Real 1998 Squadron Callsigns

- Authentic Callsigns: Interceptors now use the real 1998 RAF squadron callsigns for Leuchars, Leeming, Coningsby and Lossiemouth, 57 in total, with full controller and pilot voice coverage.

- Callsign Rotation: Every new sortie takes the next callsign from its base's pool, so no two flights on the same watch sound alike.
New: Formation & Reinforcement Intercepts

- One Raid, One Procedure: A four-ship intercepting a formation now acts as a single unit on the radio, with one merged call, one visual identification and one escalation ladder for the whole raid. The flight lead owns the calls and the whole flight stands down together when the target complies.

- Reinforcements Join Quietly: Later sorties joining an identified raid inherit the identification instead of repeating it. A fresh sortie sent after the first has gone home goes straight to the final turn-away-or-be-shot-down warning.

New: Civilian Landing Escort

- Escort to Touchdown: An intercepted airliner that is landing at its filed destination now gets a proper ending. The controller confirms it appears to be landing as filed and orders an escort, your interceptors follow it down, and the pilot reports the landing before returning to base.
New: DIVERT to Another Airfield

- Alternate Airfield Recovery: Airborne fighters, AWACS, Nimrod and tankers can be sent to another operational airfield with DIVERT from Active Operations or the aircraft's right-click controls, then resupplied and relaunched from the new base. Diverted pairs stay together and relaunch as a pair.

New: Interceptor Fuel & Endurance
Interceptor fuel burn now adapts to your selected difficulty setting.

- Hard: Realistic period-accurate baseline.

- Normal: Half rate, so interceptor sortie endurance doubles.

- Easy: One-tenth rate, for extended endurance in relaxed sessions.

- Warnings Unchanged: Joker, Bingo, PAN-PAN and MAYDAY warnings still trigger at the same fuel percentages. They just take proportionally longer to reach.

- Period-Accurate Endurance: Fuel capacities, drop tanks and burn rates have been reviewed across the military fleet and scale correctly with simulation speed.

New: Zombie Classification

- Zombie (Z): Confirmed aircraft from configured countries of interest are now classified Zombie, automatically on Easy and Normal and manually on Hard.

Interceptor Tasking

- SHADOW: The tasking button previously labelled ESCORT is now SHADOW, matching what the aircraft actually does.

- Clear Tasking: Active Identify, Engage and Shadow assignments are shown by a strike-through on both the tasked interceptor and its target.

- Whole-Flight Commands: BUSTER, CRUISE and ECO now apply to the entire flight, including aircraft returning to base. Aircraft refuelling at a tanker finish taking on fuel before automatically rejoining their flight's new tasking, and every member of a four-ship comes onto a new target.

- CAP Tasking: CAP orders now get a proper allocator acknowledgement naming your airfield and aircraft type, and you are told on ASMA if an aircraft cannot accept the task.

Fixes From Your Reports

Thank you to everyone who reported issues on Discord and through the feedback form. All of the following are resolved in this release.

- Boscombe Down Heritage Fighters: The Lightning F6 and Phantom FGR2 are now available at Boscombe Down from the start of every watch.

- Loading Mid-Session: Loading a save from the pause menu now restores the complete radar picture, keeps sortie radio-channel numbers in their original launch order, plays each radio call once, keeps inbound airliners heading for their destination, and preserves radar outage effects.

- Map Markers Clear: CAP, AWACS and SIGINT markers and range rings are removed from the map once the flight has returned home.

- Enemy Raids: Bomber missile volleys now fire toward their target from the first launch, and bombers no longer re-attack an empty patch of sea.

- FOX 3: Sea Harrier FA.2 AMRAAM shots now use the correct FOX 3 brevity call.

- Panels Come Forward: Clicking anywhere on a panel brings it to the front, not just its title bar.

- Airborne Asset Details: Track data for your own airborne assets stays visible and clickable throughout the watch, and a stray press of the Delete key can no longer hide it.

- Pausing Safely: A long stay in the pause menu no longer causes enemy aircraft to vanish or triggers a spoofer escape penalty.

- Fair Coaching: The ASMA mentor no longer penalises you for a hostile formation that already has an intercept committed against it.

- Automatic Stand-Down: A scramble request is cancelled automatically when its target turns back at the airspace boundary before launch.

- Disguised Aircraft Stay in Play: Deception aircraft flying under a false callsign now always complete their route out of UK airspace before leaving the radar picture, so an escort sortie runs through to its conclusion instead of ending part-way.

Intercept Procedure

- Realistic Compliance: Aircraft that comply after a warning now genuinely turn away, out toward the edge of UK airspace, and must hold that course for a sustained 30 seconds before the pilot reports them complying. Leaving UK airspace still counts immediately.

- Sensible Pursuit: Interceptors no longer chase a departing aircraft deep into Europe. Once it has left UK airspace and is clearly flying away, the flight declares it complying and returns home. Outbound targets remain on radar until well clear, so an intercept in progress can complete.

- Realistic Descents: Interceptors descend at military rates to meet low-flying targets and only call TALLY once they are actually near the target's altitude.

- Hostile Targets Conclude: Aircraft you have marked HOSTILE now get a proper conclusion: interceptors report compliance and return, or the WEAPONS HOT alert fires when the final warning is ignored at heightened tension. At Critical tension, targets already classified Hostile skip the identification calls and go straight to engagement.

- Complete Sequences: JUDY, confirm-intentions, shadowing, show-of-presence, show-of-force, turn-away, complying and RTB calls now run reliably through to resolution in every intercept route, inside and outside UK airspace, and resume correctly after loading a save mid-intercept.

- Pair Coordination: Interceptor pairs stay coordinated through retasking, low-fuel decisions, refuelling and emergency recovery, and intercept decisions no longer leave procedures waiting indefinitely.

Radio

- Live Radio: Switching onto a sortie's channel now joins whatever is being said at its live position, exactly like a real radio. Calls play only on their own sortie's channel and never bleed into unrelated frequencies.

- Once Per Flight: Controller readbacks, RTB acknowledgements, splash calls, entering-airspace alerts and escalation calls play once per flight rather than once per aircraft.

- Accurate Emergency Calls: MAYDAY, PAN-PAN and controller responses use the correct speaker, callsign and sequence across every emergency type.

- Traffic Advisories: Conflicting-traffic advisories cover only genuinely separate aircraft, never the target you are intercepting.

- Accelerated Radio: Voice sequences remain smooth, complete and correctly ordered at 2x, 5x and admin time controls.

Radar

- First-Sweep Contact: A radar contact now shows a triangle from the very first sweep that paints it and becomes the usual track symbol when the track forms, so a raw detection is instantly distinguishable from an established track.

- Track of Interest Accuracy: Reports now come from the correct radar station with the correct eight-point compass sector.

- Missile Tracks: Air-to-air missile tracks display a readable type on the data block.

Enemy AI & Deception

- Role-Based Flight Profiles: Enemy aircraft and missiles now fly profiles that match their role and weapon type.

- Campaign Continuity: Enemy campaign waves and victory progress continue correctly after loading a mid-campaign save.

- Identification Discipline: Unidentified hostile aircraft remain concealed until positively identified, then update consistently across the interface.

- Deception Behaviour: Disguised and compliant aircraft restore and manoeuvre reliably after a load.

Civilian Traffic

- Dublin Airport: Irish-bound airliners now descend and land at Dublin.

- Airspace Closure: Closing civilian airspace now halts every new scheduled and offshore-shuttle departure and diverts only physical aircraft, leaving CAP markers and radar ownership untouched.

- Airborne Diversions: Civilian aircraft divert if their destination becomes unavailable while airborne, and arrivals continue sequencing normally after loading an earlier point in a busy watch.

- Civilian Emergencies: Emergency squawks, aircraft identity and radio procedures remain correct throughout an incident, and emergency intercepts clear their operations alerts when resolved.
- ATC Rundowns: ATC rundowns keep their identification choices concise.

Training Missions

- Realistic Pictures: Tunnel Vision and Needle in a Haystack now start with normal civilian traffic on the radar, so the raids and the spoof aircraft have to be picked out from real contacts.

- Reliable Progress: Training missions save and resume correctly at every stage, Weapons Hot kills are scored correctly, and mission instructions no longer carry over into the results screen or a retry.

Save & Load

- Safer Saving: Save writes, rapid save requests and damaged-file handling are more dependable, and the Load Game list opens more quickly when many saves are present.

- Operational State Preserved: Aircraft, weapons, campaign progress, emergency state, support missions, AWACS range rings, civilian aircraft identities and intercepts saved during TALLY or the warning procedure all restore and resume correctly.

- Clean Loads: A loaded watch remains paused until the menu closes, then resumes at the saved speed. Loading a different watch clears effects and alerts left by the watch being replaced, and named saves preserve scenario pacing.

Scoring

- Cruise Missile Kills: Destroying an inbound hostile cruise missile is rewarded as an enemy kill.

- Accurate Rewards: Radar-evasion rewards show the exact XP awarded for the selected difficulty.

- Persistent Statistics: Destroyed-aircraft totals and campaign progress stay attached to the correct saved watch.

General Improvements

- NADOC Critical Briefing: Plays once when Critical is first reached in each watch.

- Settings Remembered: Volume levels, map overlays, zoom, position and line width are kept as you left them between sessions.

- Interface: Escape closes only the active popup or surface, gameplay shortcuts stay inactive while typing, tasked AWACS show their departure countdown, QRA launch closes cleanly, and track, tanker, flight-information and minimised-panel displays are clearer and more stable.

- Nuclear Alerts: Nuclear missile launches now use the Emergency Alert System warning once rather than a looping alert.

- Steam Continuity: Steam and Steam Cloud remain available after returning to the main menu and beginning another watch.

- Graphics Compatibility: The UK coastline displays reliably on Intel integrated graphics.

- 1998 Accuracy: Aircraft identities, callsigns, airfields and civilian operations are aligned to a consistent July 1998 setting, period-authenticated satellite activity can appear through Fylingdales, Tornado F3 and Sea Harrier AIM-9L shots reflect their all-aspect capability while the Lightning's earlier missiles remain rear-aspect, and radar clutter positions have been reviewed.

Performance & Stability
Busy watches now spread radar, airborne surveillance, asset panel, civilian traffic and clutter work more evenly across frames, with far less memory churn during large raids, for noticeably steadier frame pacing. Many smaller fixes have been folded in along the way, invisible during normal play but cumulatively reducing the chance of rare crashes, voice cutouts, save and load glitches, and frame-rate hitches under unusual conditions.

And finally, as always, thank you so much for your support and feedback. Together we'll make this the best air defence simulator on the planet. Per Ardua, Ad Astra.