HTPC Windows Games — Compat Status

Live status of 39 non-Steam Windows games added to Steam on Bazzite HTPC (bazzite@192.168.1.86). Setup started 2026-05-22.

Working ✅

Fallout 4
Vladik Brutal
Red Alert 3
Rayman Origins (fixed 2026-05-23 — GE-Proton10-34 + WINEDLLOVERRIDES="d3d9=b" %command%)
Samurai Gunn (works but gamepad not detected)
GTA V, Cuphead (assumed; not retested)

Removed from Steam shortcuts ✅

Human Fall Flat (3928445186) — already in real Steam
Shovel Knight (2526703384) — already in real Steam

Mapped to GE-Proton10-34 but still broken (need further investigation)

These were swapped to GE-Proton in hopes its bundled VC++/d3dcompiler/dotnet/dxvk-async would fix them. Same symptoms as before — GE-Proton may be reusing the existing prefix's wine state. Next: consider deleting pfx/ to force GE-Proton to regenerate cleanly.

Game	AppID	Symptom	LaunchOpt set
Brawlhalla	2410005953	Doesn't start	`WINEDLLOVERRIDES="msvcp140,vcruntime140=n,b"`
Castle Crashers	3048471472	"crash, mini dump sent"	`WINEDLLOVERRIDES="msvcp140,vcruntime140=n,b"`
Worms WMD	3846411911	Doesn't start	`WINEDLLOVERRIDES="msvcp140,vcruntime140,d3dcompiler_47=n,b"`
Worms World Party	2401592779	Doesn't start	`WINEDLLOVERRIDES="msvcp140,vcruntime140=n,b"`
Duck Game	2926094216	Won't launch	`WINEDLLOVERRIDES="msvcp140,vcruntime140=n,b"`
Doom 3 BFG	3602815006	White screen, audio plays	`PROTON_USE_WINED3D=1 %command%`

Still broken — fundamental issues

Game	AppID	Symptom	What's known	What might help
Atomic Bomberman / BM95	2875360586	Crash "instruction at 0x0 referenced 0x7" before main window	Win3.1-era PE32 (Windows 4.00 subsystem). Tried: `proton_8`, registry `Version=win98`, virtual desktop 640×480, `[Services\WineBus] Map Controllers=0 + Enable SDL=0`, LaunchOpt `SDL_JOYSTICK_DISABLE=1`	Run in dedicated 32-bit Wineprefix (`WINEARCH=win32`); try Wine ≤ 9.x; or DOSBox-X (despite being PE32, the game has DOS-like 16-bit color expectations)
Discworld Noir	2361018632	"Please insert disk III" prompt (in Russian, after Cyrillic fix)	Russian "Zatmenie v2" 2-CD release. `install.lst` only references M1+M2. Source has 233 files in cd1 / 85 files in cd2; installed had 16 files missing — copied 69 missing files into cd2 ✅; original cd3 / cd4 folders are empty (Russian release packs everything into 2 CDs). Now mapped drive D: → cd2 folder in prefix as CD-ROM type	Try drive D: → cd1 instead; or mount the `dwnrus_1_v2.nrg` / `dwnrus_2.nrg` images with `udisksctl` and bind-mount; or check `dwnoir.dll` for hardcoded paths
Final Fantasy X HD	2642741094	Was Japanese, no saves	`GameSetting.ini Language=jp → en` (copied from Windows)	Test pending
Metal Slug X	2938712902	Speed wrong, controls dead	(none)	Neo-Geo emulator config issue, not Wine
Metro Exodus	3594910936	"Unable to create interface isteamuser"	VC++ runtime copied; LaunchOpt `WINEDLLOVERRIDES`	Needs Goldberg `steam_api64.dll` emulator + `steam_appid.txt` (game expects real Steam install) — DRM-adjacent
Split Second	3871231787	Green artifacts	LaunchOpt `PROTON_USE_WINED3D=1`	Switch to GE-Proton; or copy `d3dx9_*.dll` from Windows
Super Bomberman R2	3340354231	Gamepad not detected	(none)	Steam Input config issue

Fixes done (filesystem / config / cover-art)

Cover art swapped: Atomic Bomberman, Discworld Noir, SBR2, FFVI, ALttP, Sunset Riders
"Captain Commando" Steam shortcut renamed → "Sunset Riders"
CompatToolMapping for all 39 AppIDs in config.vdf
- GE-Proton10-34: Brawlhalla, Castle Crashers, Worms WMD, Worms WP, Duck Game, Rayman Origins, Doom 3 BFG (7 games)
- Proton 8.0: Atomic Bomberman, Discworld Noir, Metal Slug X, Soldat, Red Alert 3, Split Second (6 games)
- Proton Experimental: ~24 remaining games
Rayman Legends: Ubisoft Connect copied from Windows partition into prefix + registry HKLM\Software\Wow6432Node\Ubisoft\Launcher\InstallDir
Discworld Noir:
- C:\Discworld Noir symlink → game folder ✅
- LaunchOpt HOST_LANG=ru_RU.UTF-8 HOST_LC_ALL=ru_RU.UTF-8 LANG=ru_RU.UTF-8 LC_ALL=ru_RU.UTF-8 %command% ✅ (Cyrillic now renders)
- corefonts installed via protontricks ✅
- 69 missing files copied from /Data/downloads/zatmenie v2 [torrents.ru]/cd2/ to game's cd2 ✅
- Drive D: → cd2 folder, marked as CD-ROM in [Software\Wine\Drives]
FFX HD: GameSetting.ini replaced with English+HD version
VC++ runtime DLLs + d3dcompiler_43/47 copied into 6 prefixes from Windows partition
Duck Game prefix: XNA 4.0 framework dir copied from Windows
Atomic Bomberman prefix: Version=win98 + virtual desktop 640×480 + WineBus controller mapping disabled
GE-Proton10-34 installed to ~/.steam/steam/compatibilitytools.d/

Source assets discovered on Windows partition

/run/media/bazzite/Windows/Program Files (x86)/Ubisoft/ubisoft game launcher/ (595 MB) — used for Rayman Legends prefix
/run/media/bazzite/Windows/Windows/System32/ and SysWOW64/ — VC++ runtime, d3dcompiler, xinput DLLs
/run/media/bazzite/Windows/Program Files (x86)/Microsoft XNA/ — XNA 4.0 Framework
/run/media/bazzite/Windows/Microsoft.NET/Framework64/v4.0.30319/ — .NET 4.0
/run/media/bazzite/Data/downloads/zatmenie v2 [torrents.ru]/ — original Discworld Noir Russian 2-CD source (cd1, cd2, dwnrus_1_v2.nrg, dwnrus_2.nrg)
/run/media/bazzite/Windows/Users/mallexxx/documents/square enix/... — FFX gamesetting.ini

Open questions / next steps

Try deleting pfx/ folders for the still-broken GE-Proton games (Brawlhalla, Castle Crashers, Worms WMD/WP, Duck Game) to force fresh prefix creation with GE-Proton's bundled runtimes
Doom 3 BFG: investigate gamescope+OpenGL interaction (the game uses OpenGL natively, not D3D; white screen suggests gamescope/X11 swap issue, not DXVK)
Atomic Bomberman: create a separate 32-bit WINEARCH=win32 prefix outside Proton, install game there, wrap as launcher script
Discworld Noir: if drive D: → cd2 doesn't satisfy CD check, try cd1 or mount one of the .nrg images
Metro Exodus: ask user if OK to use Goldberg Steam emulator

Lessons learned / Infra notes

shortcuts.vdf is binary VDF; edit only with Steam closed (systemctl --user stop gamescope-session-plus@steam.service)
config.vdf is text VDF; CompatToolMapping block controls per-AppID Proton
Steam reads both vdfs on startup, writes back from in-memory state on exit → any edit while Steam running will be lost
protontricks (Flatpak) needs flatpak override --user --filesystem=/var/home/bazzite/.local/share/Steam
Parallel protontricks runs on same Proton version conflict on the shared bin cache — must sequence
xvfb-run protontricks <verb> — MS-redist EXE installers (dotnet40, VC_redist) hang on invisible button click. Workaround: copy DLLs from Windows partition + WINEDLLOVERRIDES="dll1,dll2=n,b" %command%
For Cyrillic/locale: Proton needs HOST_LANG / HOST_LC_ALL env vars to propagate locale into prefix
Background jobs that survive SSH disconnect: systemd-run --user --unit=<name>
GE-Proton install: download tar.gz from github.com/GloriousEggroll/proton-ge-custom/releases/latest, extract into ~/.steam/steam/compatibilitytools.d/, restart Steam — tool name in CompatToolMapping matches the extracted directory name (e.g. GE-Proton10-34)

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