The game probably doesn't work anymore.
I installed d3dcompiler_47 and the Ubi Connect launcher via Protontricks.
But it just crashes after the startup logo.
The little startup logo has also wrong colors.
@MartinX3 Wipe the game's prefix and swap out of third party builds of proton. I installed the game on deck and desktop, and it seems to be working fine without any extra steps. If problems persist, attach a new log.
@simifor the new log:
steam-2820130.log
Ubisoft Connect GameStarter never initializes — game process waits forever with no window; works on GE-Proton10-34
System: Fedora (kernel 7.1.10-200.fc44), KDE Plasma on Wayland, Intel Core Ultra 7 258V (Intel Graphics, Lunar Lake), 32 GB RAM. Ubisoft Connect 173.0.13316 (built Aug 6 2026), installed by the game's Steam install script into the game's prefix.
Symptoms: Launching the game starts Anno1602.exe -uplay_steam_mode, which starts Ubisoft Connect. UC opens and logs in via Steam ticket, but the game itself is never launched: no game window, no sound. The wrapper process stays alive indefinitely at ~3% CPU and UC's Library shows "This game is currently running".
Log evidence (from .../pfx/drive_c/Program Files (x86)/Ubisoft/Ubisoft Game Launcher/logs/), on every launch since installation:
launcher_log.txt: PlayGame.cpp (1571) Gamestarter must be initialized before game can be launched. followed by PlaySession.cpp (364) Play session (1) successfully started for game 7023. — then nothing further.game_starter_log.txt is 0 bytes since installation.service_log.txt: PolledPipeSocket.cpp (311) Executing asynchronous IO operation failed, code: 109 / PolledPipeSocket.cpp (360) Fail to complete async IO, closing 109 every session.This looks like the same GameStarter mechanism failure analyzed in #9535 (transferred into https://github.com/ValveSoftware/Proton/issues/6507#issuecomment-3977165254): UbisoftGameLauncher.exe is spawned with -gamelauncher_wait_handle 1140 -upc_uplay_id 7023 ... and never progresses past the handle wait, so the game_start_ipc_pipe_ pipe is never created and no StartGrantedRsp reaches the game.
Tested, same prefix in all cases:
HKCU\Software\Ubisoft\Uplay\GameStarter\7023 got created) and the game starts with window and sound.Additional observation: the UC installer only created HKLM\Software\Wow6432Node\Ubisoft\Launcher; the native 64-bit registry view was missing entirely and service_log.txt logged RegistryUtils.cpp (284) Uplay is not installed. We manually mirrored Launcher\InstallDir and Launcher\Installs\7023\InstallDir into the native view before the GE-Proton test; this alone did not fix Valve Proton (unverified whether it contributed to the GE-Proton result).
PROTON_LOG=1 logs available for both the failing (Valve Proton) and the working (GE-Proton10-34) runs — happy to attach.
ge-proton10-34x1 2026-08proton 9.0-4x1 2026-08proton experimentalx1 2026-08proton hotfixx1 2026-08PROTON_LOG=1x1 2026-08
Compatibility Report
System Information
I confirm:
Symptoms
Proton debug log: steam-heroic-0.log
Reproduction
Appears to be the same for multiple users, also using the Steam version, as per ProtonDB reports. Appears every time the game is launched.
Update: adding winetrick
d3dcompiler_47solves the problem for me