ValveSoftware / ValveSoftware/Proton
Sega Rally (10400)
Open
Nobody has claimed this yet.
.NET
Game compatibility - Unofficial
- Dominant language
- C++
- Stars
- 32.8k
- Forks
- 1.6k
- PR merge metrics
- PR metrics pending
Description
Compatibility Report
- Name of the game with compatibility issues:Sega Rally
- Steam AppID of the game:10400
System Information
- GPU: [AMD/ATI] Vega 10 XL/XT [Radeon RX Vega 56/64] (rev c3)
- Driver/LLVM version: Mesa 21.2.6
- Kernel version: 5.15.6
- Proton version:6.3-8
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
Error message of "the method or operation is not implemented".
Error log has Mono/.NET files missing.
Reproduction
- press play
- observe error dialog pop-up

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
Start by reviewing steam-10400.log and reproducing the issue with Steam AppID 10400 using the listed Proton, kernel, GPU, and driver versions. Compare the reported Mono/.NET files and error dialog with the launch steps; done means Sega Rally starts without the “method or operation is not implemented” error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100