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Survivalist: Invisible StrainEventsNew patch in publicbeta (v248), previous patch in main (v247)
Game update

New patch in publicbeta (v248), previous patch in main (v247)

Survivalist: Invisible Strain · published 25 May 2025, 12:53 UTC · build 18600727

All eventsPlayers around this dateRead on Steam

Hey everyone, it's patch day! This one's just a big old list of fixes for various bugs that have been reported since launch, with one minor difficulty tweak of not requiring a specific amount of fuel at the end of Story Mode. Here's the change list:

  • Don't require a specific amount of fuel at the end of Story Mode
  • Fix for Liam warning a chicken that Carter has gone crazy
  • Added 'ignore_gamepads' command line (launch option) as someone had a bug where it kept showing gamepad button prompts
  • Possible fix for occasional hang when saving after you find the item in a Lost Item quest
  • Fix for situation where lumberjacks wouldn't chop trees that fell entirely on impassable terrain
  • Fix for some situations where raiders and hordes pathfinding would get stuck if you put your base in certain locations in Story Mode
  • Fix sometimes pressing OK on crafting dialog with keyboard sometimes just playing a block/parry animation and not crafting
  • Fix for people not zombifying if you kill them in one hit with an infected weapon
  • Fix for people with invisible strain only turning into regular zombies if they die by infection
  • Fix for people continually filling up and depositing water bottles when they have Carry Amount set for water and a crafting role for something involving water like Cement
  • Fix for It Begins quest not being activated if you walk away from Morgan Harding at particular points when she's asking for help
  • Fix for being able to cancel some important speeches by pointing a gun or bow at the person talking
  • Fix for co-op players being able to break surrender by moving in some situations in Story Mode when you're supposed to be locked in place
  • When joining a co-op game try sending all game state packets at once instead of one by one, maybe this will be faster on XBox
  • Updated Brazilian Portuguese, Czech, French, German, Indonesian, Italian, Japanese, Latin American Spanish, Persian and European Spanish
  • Copied UI and BaseStory sections from Latin American Spanish to European Spanish, except for lines containing 'ustedes'.
  • Fix for Asian languages not appearing in drop-down boxes and input fields on XBox


EDIT - released a hotfix for a crash in the editor, so it's v249 now.

Also, v247 went into the main branch and XBox (a few days ago actually).

What's this publicbeta thing?


v249 will be in the "publicbeta" branch on Steam for a while, before pushing it to the main game and to XBox. If you want to try the latest features as they come out (and help test them!) it's a good idea to start using this branch. But keep in mind:

  • Because it's the bleeding edge it could be less stable
  • If you want to be able to play online co-op with someone you'll need to be on the same version as them
  • If you go back from the "publicbeta" branch to the main branch you may not be able to load savegames created on "publicbeta".


To use publicbeta, just right-click on Survivalist: Invisible Strain in your Steam library and go to Properties, then Betas and in the drop-down select "publicbeta".

More from Survivalist: Invisible Strain

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All events
Game update19 Aug 2026Kicked v285 (the latest build, with pickpocketing) onto the main branch!Hello, just a note to say I've updated the main branch with the latest build in publicbeta, which means Pickpocketing is now fully released to everyone :) And I've updated the library page image with some new art from Ramiro Ra, who previously did the trading cards ! EDIT - Saturday 22nd of August - Added a little hotfix (v286) to the publicbeta branch which fixes a crash when you hover over a…Survivalist: InvisibleGame update10 Aug 2026New small patch in publicbeta (v284)Hello, it's just another small patch in publicbeta. This is mainly to fix a crash when you try pickpocketing someone but your character is too moral or likes them too much to want to hurt them, which disables stuff like chokehold. But I didn't realise it was happening with pickpocketing, and the warning message caused a crash. There's also a fix for characters getting stuck in a loop finding wo…Survivalist: InvisibleGame update30 Jul 2026New small patch in publicbeta (v283)Hello, just a small publicbeta update with a fix for an occasional crash if something gets deleted while you are repairing it, and a fix for the SIS Move Props mod, which it seems got broken by a change I made back in 2025. Also a tweak to how the Dark Past and Loyalty quests select a landmark for a meeting place, they've often been using vehicles along the roads which wasn't the original inten…