protonscr

The Riftbreaker: Multiplayer Playtest

protonclosed appid 3202020Game compatibility - UnofficialXAudio2
ValveSoftware/Proton#8799 · opened 2025-06-12 by Rookblade · updated 2025-09-08 · 4 comments · github · game page · search this game
RRookblade 2025-06-12 github

Compatibility Report

  • Name of the game with compatibility issues: The Riftbreaker: Multiplayer Playtest
  • Steam AppID of the game: 3202020

System Information

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.

Proton Log: steam-3202020.log

Proton Log +steamclient: steam-3202020.tar.xz.txt please rename to *.tar.xz.

Potentially related log fragment

149.267:0180:033c:warn:seh:handle_syscall_fault backtrace: --- Exception 0xc0000005 at 0x6ffff968bbac:.
149.267:0180:033c:warn:seh:dump_syscall_fault backtrace: returning to user mode ip=00006ffff50d2df2 ret=c0000005
149.267:0180:033c:err:steamclient:steamclient_call Access violation in ISteamNetworkingSockets_SteamNetworkingSockets012_RunCallbacks.
149.268:0180:033c:warn:seh:dispatch_exception backtrace: --- Exception 0xc0000005.
149.268:0180:033c:trace:seh:dispatch_exception code=c0000005 (EXCEPTION_ACCESS_VIOLATION) flags=0 addr=00006FFFFFC0D0C7
149.268:0180:033c:trace:seh:dispatch_exception rip=00006fffffc0d0c7 rsp=000000002de2fa50 rbp=000000002de2fb50 eflags=00000206
149.268:0180:033c:trace:seh:dispatch_exception rax=000000002de2fa70 rbx=00006ffff5222d60 rcx=000000002de2fa70 rdx=0000000000000000
149.268:0180:033c:trace:seh:dispatch_exception rsi=00000001495f5e80 rdi=00000001495f5e80  r8=0000000000000000  r9=0000000000000000
149.268:0180:033c:trace:seh:dispatch_exception r10=00007765cc7ed540 r11=0000000000000293 r12=00000000c0000005 r13=0000000000000000
149.268:0180:033c:trace:seh:dispatch_exception r14=00000001495f5e80 r15=0000000000000000 mxcsr=00001fa0

Symptoms

Able to host and run a game solo with no issue, but if a player attempts to join. The game crashes. Attempting to join another host through any method will also result in a crash.

Reproduction

Either host a game and have a player join the lobby or attempt to connect to another host via the server list, steam game invite, or console command.

Ggofman 2025-06-13 github

Could you please attach the compressed log from PROTON_LOG=+steamclient %command% ? The log may be big but those compress very well.

Ggofman 2025-06-18 github

Nvm the logs, this should hopefully be fixed in the just updated Proton Experimental [bleeding-edge] branch (see https://github.com/ValveSoftware/Proton/wiki/Proton-Versions#proton-bleeding-edge for how to opt into it).

MMMaster 2025-06-18 github

I can confirm bleeding-edge fixes the issue even in The Riftbreaker [coop_beta]. Thank you!

Jjhalag 2025-09-08 github

Bleeding edge fixes this issue for me, but seems to cause a regression - game crashes on launch unless I set PROTON_USE_WINED3D as a launch option. It does not require that normally.

Should I open a new issue for that?

Proton versions

Launch options

Error codes