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Steam News13 October 20258mo ago

[DEMO PATCH] Crash fix: light detection stability

Demo Patch — Crash fix in light detection What’s fixed Fixed a crash that could occur near lamps while the game calculates light levels (point/spot/directional lights).

Full notes

Full Backrooms Lost Runners update

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

What changed

2 fixes1 addition4 changes0 removals
  • Performance
fixedDemo Patch — Crash fix in light detectionWhat’s fixed
fixedDemo Patch — Crash fix in light detectionFixed a crash that could occur near lamps while the game calculates light levels (point/spot/directional lights).
addedDemo Patch — Crash fix in light detectionAdded extra safety checks for destroyed or streamed-out light components.
changedDemo Patch — Crash fix in light detectionGeneral stability improvements.
changedDemo Patch — Crash fix in light detectionHow to update Update the Demo build via Steam as usual.
changedDemo Patch — Crash fix in light detectionStill crashing? Please send the in-game crash report and tell us where it happened, or write in our Discord . This helps us fix issues faster.

Backrooms Lost Runners changes

fixedWhat’s fixed
fixedFixed a crash that could occur near lamps while the game calculates light levels (point/spot/directional lights).
addedAdded extra safety checks for destroyed or streamed-out light components.
changedGeneral stability improvements.
changedHow to update Update the Demo build via Steam as usual.

Demo Patch — Crash fix in light detection

What’s fixed

  • Fixed a crash that could occur near lamps while the game calculates light levels (point/spot/directional lights).

  • Added extra safety checks for destroyed or streamed-out light components.

  • General stability improvements.

How to update Update the Demo build via Steam as usual.

Still crashing? Please send the in-game crash report and tell us where it happened, or write in our Discord. This helps us fix issues faster.

Thanks for playing the demo and for your wishlists!

Source

Steam News / 13 October 2025

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