Nuclear Nightmare — patch notes and updates
Stored observation / content update:
Dated developer announcements recorded from Steam. Open the source for the complete update.
| Update | Date | Excerpt / source |
|---|---|---|
| Nuclear Nightmare V6.3 | 2026-04-08 | Patch Notes (V6.3) Major Improvements Major performance optimizations: all areas now load when you first spawn in. This removes mid-game stuttering from level streaming and results in more consistent frame rates throughout the match. More realistic ragdoll physics for improved character reactions and immersion. New gore system: explosions can now dismember limbs with visible bone detail. Gameplay & Mechanics Snowcats can now run over and kill players or enemies at high speed. Helicopter blades are now lethal on contact. Improved helicopter damage detection for more reliable interactions. New drowning system: players now gradually sink when dr |
| Nuclear Nightmare V6.2 | 2026-03-30 | Patch Notes V6.2:Match start up logic moved to authority only (Should fix clients crashing when loading into a match or rare crash occurring when start with radios are selected, as well as improving overall networking and desync)Snowmobile Physics Overhaul (Snowmobiles now have more realistic collision, handle better, and have improved steering)Camera lock bug fixed (This occurred if for example you were attacked while playing an animation and then did not die your camera would become locked in place)Imposter mode can be played with two players now (This is fun if you are playing with a friend and do not tell them you are playing imposter mod |
| Nuclear Nightmare V6.1 | 2026-03-24 | Patch Notes (V6.1): - Imposter can see objectives - Ability to move during attack and death sequences fixed - Imposter and enemy attacks not exiting victim from tasks/events (includes generators, lasers, computers, etc) - Camera no longer lags behind mesh during a ragdoll death - Deprecated old start up load level stream (may have caused client crash on start of match) - Fixed issues with spawn points for big lobbies starting the match - Scanner says uncontaminated when done by imposter on tower island fixed - Player ragdolls falling through map fixed - Major post process improvements - Motion Blur (You can turn this off in the graphics menu |
| Nuclear Nightmare V6.0.1 | 2026-03-21 | Patch Notes: - Temperature dropping in lobby helicopter fixed - Fixed crashes occurring during matches |
| IMPOSTER MODE UPDATE | 2026-03-20 | Nuclear Nightmare — Imposter Mode Update (v6.0) 🧬 Imposter Mode (NEW)One player is secretly selected as the ImposterMimic other players — including their appearance and usernamesAssimilate the entire team to winBlend in, deceive, and strike when no one is watchingVaccines will temporarily mask positive test results ⚙️ Major Performance & Optimization ImprovementsSignificant FPS and stability improvements across the gameOptimizations include:Texture resolution balancingVirtual Shadow Map memory tuningPSO (Pipeline State Object) cachingRendering improvements🌐 Major Networking ImprovementsImproved synchronization and server authorityFixed desy |
| IMPOSTER MODE TEASER #2 | 2026-03-08 | |
| IMPOSTER MODE TEASER | 2026-02-16 | |
| Nuclear Nightmare V5.2.1 | 2026-01-19 | V5.2.1 Patch Notes: - Barricade Rework, now requires an enemy to hit the door 8 times, if the enemy runs away in the middle of this the barricade and door will stay intact. Additionally enemies play an animation when trying to break open the door. (Barricades should be worth using now) - Players receiving random fire damage fixed - Leech attack get up camera animation not playing fixed - Exiting vehicles on a slope caused camera to become stuck in a tilted position fixed - Driver now exits vehicle in forward direction - Monster footsteps slightly increased in volume - Removal of raytracing proxies (possibly causing AMD start up crash) - Item |
| Nuclear Nightmare V5.2 | 2026-01-08 | Patch Notes V5.2: - New Pilot Skin - Emergency lights spin speed slowed - Reload occurring multiple times when spamming R fixed - Can see first person arms when using jetpack fixed - Huskies not blowing up from trip mines fixed - Snowcat passenger animation improved - Duplicate sniper in vehicles fixed - Player death animations not playing when shot or burned while doing gen or laser fixed - Flamethrower damage not affecting players fixed - Cabin lighting blown out fixed - Start game loading screen speed up (no longer can see teleport to start position) - Inverted bathroom doors in Tower Island fixed - Lag at outpost 32 when dog navigating fi |
| Nuclear Nightmare V5.1 | 2025-12-18 | V5.1 Patch Notes: Features: - Players now drop full inventory on death - Players can now reinforce spectators that joined the game after the match has already started (This system prioritizes players already in the match so in order to reinforce players that joined late, all original players will have to be reinforced) Fixes/Improvements: - Snow on gas stations + gas station model optimizations - when dropping items the game will select the one that will take the old slot - improved unequip for glowsticks and flashlights (Fixes an issue where you hold two items at the same time) - Snowmobile snow kick up particle effect overlapping over fog f |
| Nuclear Nightmare V5.0.2 | 2025-12-08 | Patch Notes: - Gas canister explosion stack overflow crash fixed (This crash occurs when a gas canister blows up from another object blowing up, you may have experienced this crash even if a laser went off next to a gas canister item) - Level streaming values optimized/Crash fixes (Tweaked streaming values to be more optimized for lower-end pcs, i.e. before we tried to load areas very fast by dedicating a high amount of ms per frame at a close range to the POI, Now we load the area from a far distance with low ms per frame with the trade off of a longer load time. However this shouldn't be an issue as areas are loaded further) - Examine tasks |
| Nuclear Nightmare V5.0.1 | 2025-12-06 | Patch Notes: - Major Networking Improvements (Significantly decreasing session disconnects and rubber-banding) - Voice chat robotic sounding voices/stuttering fixed - Trip mine explosion causing rare game crash fixed - Infection test positive result caused extreme lag on low-end hardware fixed - Fog cutoff too harsh on lower-end graphics fixed - Tower Island lobby helicopter collision exploit fixed - Helicopters spawning under landing pads on Tower Island fixed - Research Center in the forest silent alarms classified floating fixed I have read a lot of comments about losing hours of grind time for skins. This isn’t necessarily the case becaus |
| THE REMASTER UPDATE | 2025-12-05 | THE REMASTER UPDATE Features:Remade/Remastered New Player Models (This adds brand new remade player models into the game while also allowing the player to customize every aspect of their outfits color combinations) EDIT: When launching the game if you previously had old skins purchased it will refund the points back to your accountTrue First Person Experience (Removes exaggerated head bob movement & looking through walls with a weapon in hand. First person arms are now attached to the player’s camera making the overall experience feel more polished)Massive AI Improvements (AI now is able to navigate the environment without getting stuck on mi |
| THE REMASTER UPDATE TEASER | 2025-11-22 | |
| Nuclear Nightmare V4.5 | 2025-10-24 | Patch Notes: - Item Capacity UI rework (Made more visible and stylized) - Apex stun time fixed (sorry all, guess I turned the stun time down to 5 seconds and that accidently made it to a packaged build, now is back to normal) - Slug queen health scales on difficulty (Normal difficulty will make the Slug Queen feel closer to a regular enemy) - Optimized enemy spawn code and enemies can now continue to spawn when one is wounded (previously would only spawn new enemies when all were dead) - Mimics now cannot spawn in solo (Now allows you to play solo full stealth since mimics wouldn't mimic anyone in solo and just instantly know some ones locati |
| Nuclear Nightmare V4.4 | 2025-10-08 | Patch Notes: - Hud rework, temperature gauge merged with health icon + reworks to sight UI, and all item slots and icons - Decal buffer removal (decals are now rendered in the main base pass) (more performance) - GBuffer format changed to 8 bit (Slight performance improvement on high end gpus, but should be major performance boost on low end gpus) - Notification UI completely reworked - End game screen UI changed to merged replay menu with the classified menu + Russian translation now correctly fits on the end game screen - New generator model and animations for working on the generator - If first person animations are turned off it now make |
| Nuclear Nightmare V4.3 | 2025-09-30 | Patch Notes: - New Slug Queen leech attack sound - New trip mine model - Level streaming values changed to be more performant values (Decreases stutters when loading in a area) - Ray tracing proxies (Will slightly boost performance on computers that support ray tracing) - Main Menu made more performant (Should be close to in-game values) - Default player color turned to neutral value (Some people did not realize there is a slider next to the color wheel to change darkness so I changed the default mask color to white to avoid the confusion) - Updated Russian translations (Still not perfect, some things are need corrected alignment and very hig |
| Nuclear Nightmare V4.2.2 | 2025-09-26 | Patch Notes: - Slug queen health buff by 50%, - Slug queen getting stuck quite frequently fixed - Removal of NIS (Caused too many crashes on unsupported PCs despite implementing the correct support queries, if you previously enabled this mode and then started crashing every time on launch this update will solve this issue) - Main menu made more performant - Low island made slightly more performant - Toggle voice chat turned on by default for first time players - Slug queen movement made slower on bullet impact Note: I am also working on a build that will support FSR as a separate download option, in addition new RU translations will be out so |
| Nuclear Nightmare V4.2.1 | 2025-09-23 | - Broke some enemy spawns on V4.2.0 this update fixes the issue |
| Nuclear Nightmare V4.2 | 2025-09-23 | Patch Notes: - Clients not being able to exit actions (gens and lasers) fixed - Left click and Right click removed from stop action binding - Locked door anim not replicating properly + no longer locks input during animation - Slug Queen speed decreased to be slightly below the player's running speed - Slug Queen leech attack: throws up leech during chase that tracks down the players location from when the leech was created - Leech attack missing client head if you had fp anims turned off fixed - Leech not moving after killing player fixed - Shooting fire near leech not dealing damage fixed - Added queries to check if NIS is supported on your |