protonscr

Metro 2033 - very low fps in cutscene with demon in library

protonclosed appid 43110
ValveSoftware/Proton#9718 · opened 2026-04-27 by GermanAizek · updated 2026-04-27 · 1 comments · github · game page · search this game
GGermanAizek 2026-04-27 github

Compatibility Report

  • Name of the game with compatibility issues: Metro 2033
  • Steam AppID of the game: 43110

System Information

Proton Experimental Log:

steam-43110-library-level-trigger-scene-very-low-fps.log

How to reproduce (watch video):

  1. Run level (chapter) "Library"
  2. After show Librarier NPC run scene with flying demon. FPS drops below 10 frames and PROTON_LOG is full of errors.

Bug affected any Proton versions.

https://github.com/user-attachments/assets/20bb5bd5-3115-4aa9-9540-b288de1587c3

Kkisak-valve maintainer 2026-04-27 github

Hello @GermanAizek, we're using one compatibility report per unofficially supported game title. Please do not intentionally open duplicate issue reports.

Proton versions

Launch options