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Steam News28 May 20261mo ago

Playtest hotfix

We have released a playtest update that includes balance changes and fixes for critical bugs. Important: with this update, old saves may become corrupted, which will significantly affect gameplay.

Full notes

Full Security 51 update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

5 fixes2 additions5 changes2 removals
  • Balance
  • Gameplay
  • Fixes
  • UI and audio
  • Security
  • Store
changedWe have released a playtest update that includes balance changes and fixes for critical bugs.
addedImportant: with this update, old saves may become corrupted, which will significantly affect gameplay. We recommend starting a new game after this update.
fixedFixed :
fixedThe instruction generation system has been completely reworked. Instructions will no longer cause contradictions.
addedThe camera mechanics have been simplified. The camera tutorial has also been updated to reflect the new mechanics.
removedStory dialogues no longer advance automatically and are now advanced by pressing Space.

We have released a playtest update that includes balance changes and fixes for critical bugs.

Important: with this update, old saves may become corrupted, which will significantly affect gameplay. We recommend starting a new game after this update.

Fixed:

  • The instruction generation system has been completely reworked. Instructions will no longer cause contradictions.

  • The camera mechanics have been simplified. The camera tutorial has also been updated to reflect the new mechanics.

  • Story dialogues no longer advance automatically and are now advanced by pressing Space.

  • Changes to the balance and difficulty of identifying visitors.

  • Reworked the balance of guests arriving via elevator.

  • Fixed an issue with highlighting certain organs.

  • Removed an instant-kill monster.

  • Fixed an issue with the playtest ending on

    day 29

    .

  • Fixed localization issues, including incorrectly displayed instructions such as "Instruction/16".

  • Multiple technical fixes.

We thank you for your bug reports and feedback. Your support is helping make Security 51 even better!

You can join the playtest right now on the game's Steam page:

https://store.steampowered.com/app/4246860/Security_51/

Source

Steam News / 28 May 2026

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