protonscr

The Witcher 3 REDkit Playtest

protonopen appid 2889630Game compatibility - Unofficial.NET
ValveSoftware/Proton#7653 · opened 2024-04-19 by Valmar33 · updated 2026-08-25 · 7 comments · github · game page · search this game
VValmar33 2024-04-19 github

Compatibility Report

  • Name of the game with compatibility issues: The Witcher 3 REDkit
  • Steam AppID of the game: 2889630

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.

steam-2889630.tar.gz

Symptoms

The Witcher 3 REDkit crashes in Step 2 of 5 where the editor is uncooking XBM data. Crashes towards

Reproduction

  1. Download The Witcher 3
  2. Download The Witcher 3 RedKit
  3. Start RedKit
  4. Point games field at game folder.
  5. Point depot field at wherever you want RedKit to unpack The Witcher 3's files
  6. Click generate
  7. Wait until the editor tries to initialize the engine
  8. Editor will crash
VValmar33 2024-04-21 github

@kisak-valve

Tried installing dotnet40 and dotnet48 via winetricks with Arch wine-staging 8.21, and they install without issue. With those installed, the Editor completes every step without issue.

Proton has seemingly had issues for a long time with installing dotnet40 and occasionally dotnet48, even though wine-staging 8.21 installs them without error. Puzzled at what's going on there.

Waiting for Mono to catch up will be painful when dotnet48 just works:

Screenshot_20240422_121617

VValmar33 2024-04-21 github

Once the depot is valid, creating and opening projects, and running the editor works just fine:

Screenshot_20240422_123237

VValmar33 2024-04-21 github

Well... now the editor's just crashing for me now upon loading:

steam-2889630 (1).tar.gz

VValmar33 2024-04-29 github

Filed a bug report to wine-mono

Full Proton log: steam-2889630-mono.tar.gz

Aabheekda1 2024-05-29 github

I'm having the same issue where it's crashing at step 2 (the official REDKit, not the playtest). I installed dotnet40 and dotnet48 and am still having the same issue (Proton Experimental and same WINE version).

Mmadewokherd 2026-04-28 github

I retested, and I'm not seeing a crash, but the editor window doesn't appear to be rendering a 3D scene. I don't know how to use this program, so I don't know if that's expected behavior or not.

Ddsge 2026-08-25 github

It seems to be working with the current proton-experimental

that "depot generation" thing was broken for me upon redkit patch3 in 2024 so I guess something must have changed elsewhere since

Image

all I did was symlink in the witcher3 install folder to somewhere inside the pfx folder of the redkit and then I could point the redkit to it

waited about an hour for the depot generation to finish, and then it worked

Proton versions