Version 0.6.3d Patch Notes
The Killing Antidote Patch Notes — February 4, 2026
Aggregated from Steam, cross-tracked with Battle.net coverage on GamePatchNote.
New Content
Added: Scarves (can be obtained from any green clothing box)
Improvements to Challenge Map “Fast Food Restaurant”
Added a vending machine that sells gun modification parts
Added 3 NPC companions
Poison mist can now be filtered by wearing a gas mask
Other Improvements
Gas masks no longer consume durability outside of poison gas areas
NPC companions now require gas masks when entering poison gas areas
NPC companions’ shooting accuracy improves as they eliminate more enemies
Reduced Mouse Sensitivity when using high-magnification scopes
Poison arrows now deal damage to any zombie without requiring a headshot
Improvements for MOD
Fixed an issue where NPC companions and mercenaries did not engage in combat
Fixed an issue where mercenaries did not attack signal towers
Bug Fixes
Fixed an issue where Brutes could not pick up weapons from corpses
Fixed an issue where player could get stuck when attacked while climbing ladders
Fixed an issue where NPC corpses could not be dragged
Fixed an issue where hair could block the view through scopes
Fixed an issue where small medicine bottles occasionally remained in hand
Fixed an issue with incorrect item quantities in vending machine sales
Fixed an issue where DLC content failed to load correctly
Fixed an issue with incorrect counting in ZombieBatchSpawner, which caused some waves to spawn excessive zombies
A quick note on MODS
If the game crashes on launch, check your installed mods. It's recommended to temporarily remove any gameplay-altering mods and test again.