ValveSoftware / ValveSoftware/Proton
ANNO: Mutationem Demo (1483420)
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- C++
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Description
Compatibility Report
- Name of the game with compatibility issues: ANNO: Mutationem Demo (https://store.steampowered.com/app/1368030/ANNO_Mutationem/)
- Steam AppID of the game: 1483420
System Information
- GPU: NVIDIA GeForce GTX 980 Ti
- Driver/LLVM version: 455.46.02
- Kernel version: 5.9.13-zen1-1-zen
- Link to full system information report as Gist: https://gist.github.com/popsUlfr/96adac7690c83232b65b1d4a2ed83aa4
- Proton versions: 5.0, 5.13, Proton Experimental
I confirm:
- that I haven't found an existing compatibility report for this game.
- that I have checked whether there are updates for my system available.
Symptoms
With official proton versions 5.0, 5.13, Experimental the demo will crash with the Unity crash dialog when loading a New Game.

With Glorious Eggroll's Proton-5.21-GE-1 the demo loads successfully and the demo is fully playable.


EDIT: I realised after the fact by watching youtube playthroughs of the demo that there's supposed to be an intro video playing. But even Glorious Eggroll's proton does not show it properly, only displaying a black screen.
I've generated proton and dxvk logs with the different proton versions to maybe pinpoint the things that need to be implemented or fixed in the official proton to make the game fully playable. Again, the demo is fully playable with Glorious Eggroll's Proton 5.21-GE-1.
- 5.0: steam-1483420-proton-5.0.log
- 5.13: steam-1483420-proton-5.13.log
- Experimental: steam-1483420-proton-experimental.log
- 5.21-GE-1: steam-1483420-proton-5.21-GE-1.log
Reproduction
- Launch the Demo
- Start a New Game
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the crash when starting a New Game with official Proton 5.0, 5.13, or Experimental, then compare the attached proton and DXVK logs with the working Proton-5.21-GE-1 logs. The issue is resolved when the demo loads and its intro video displays correctly under an official Proton version.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- unity
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100