Compatibility Report

• Name of the game with compatibility issues: No Man's Sky
• Steam AppID of the game: 275850

System Information

• GPU: GTX 1080 AMP!
• Driver/LLVM version: 495.44
• Kernel version: 5.13
• Link to full system information report as Gist:https://gist.github.com/Bloodis94/3fe34ebfad674e004d1cd14baa9f2fb5
• Proton version: Proton 6.3-8
• [x] KVM

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
• [x] that I have checked whether there are updates for my system available.

Symptoms

Installing with both Proton 6.3-8 and Proton-6.21-GE-2 make the games run but without multiplayer. To make the multiplayer work i had to enable Win 7 prefix as suggested on the protondb page (https://www.protondb.com/app/275850) using protontricks.

The report where i find the solution:
Using the custom version of Proton, I was able to run the game out of the box without issues. When I tried to play on multiplayer, it was unable to connect. After some research I found I had to set the prefix of the game in Proton to win7. So here’s some assistance on how to set these things up: To download and install ProtonGE, use this: https://github.com/Termuellinator/Proton-Community-Updater (Be sure to download the Proton Golden Egg version, or ProtonGE.) To download and set up ProtonTricks, use this article: https://simpler-website.pages.dev/html/2021/1/protontricks To set the game’s prefix to win7, use this command: “protontricks 275850 win7” This will allow multiplayer to work.

Reproduction

Install using the latest Proton version and try to connect to a friend in multiplayer.

steam-275850.log