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Under Lock update for 3 April 2021

New update Alpha 3. AI monster is here!

Share · View all patches · Build 6479350 · Last edited 24 June 2023 – 16:41:41 UTC by Wendy

Patchnotes via Steam Community

Hello everyone! The new update is here!

AI Monster

You can now play UnderLock in single mode or with friends against the AI ​​monster. So far, this mode is no different from the regular mode, except a monster under control of computer, but perhaps in the future, single-player mode will be filled with additional interesting rooms and riddles.

You can choose Flatface or Weeper as the monster. After addition new monsters in game, they will also soon be available for selection as AI monster.

I tried to make AI ​​fair enough, it does not use tricks or legal cheats when playing and acts according to the rules of the corresponding monster.
The Weeper is guided by the noise from players and traps.
Flatface searches players visually, patrolling the location.

To play with the AI, select "Single mode" from the main menu, customize lobby and play.
You can also create a regular multiplayer game and invite friends. If no one chooses monster, the host will be able to select a computer controlled monster. Then start the game.


  • Now all monsters can kill from the start of the game. This will make them dangerous at any stage.
  • Now the initial speed of the monster is reduced, and as the charge increases, speed increases too.
  • Added pause between music.
  • Added new loading screens.
  • Added "TargetFPS" setting. By enabling it and setting the required value, the game will try to keep the specified FPS level. Interchangeable with v-sync.
  • Added a hint about the ability to control flashlight on the left Alt.
  • Added light switches on levels.
  • In the settings, numeric buttons are displayed simply as numbers instead of Alpha1, Alpha2, Alpha3, etc.


  • The five player game now works fine and loads the level. (Sorry I didn't notice this bug before)
  • The Observer can no longer interact with doors and drawers.
  • In the Hospital, behind the exit doors, additional doors have been added. Now you cannot fall from the map.
  • You can collect more than one note in your inventory.
  • You can no longer select the same character if you switch them at the same time.

Windows 64-bit Under Lock Content Depot 1279331
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