
Moosus_Caedus_The_President
Published
DXVK_MEMORY_LIMIT_MB=20000 PULSE_LATENCY_MSEC=30 PROTON_ENABLE_NVAPI=1 DXVK_ASYNC=1 gamemoderun %command%
Frame jitters and dips from 100+ to 5fps
Game crashed a few times as it progressed and freezed once in a while
Game was extremely unstable without tinkering. These launch commands fixed crashing and freezing problems and reduced 50% of stutters I had. If you have a GPU with over 8GB of VRAM, make sure to include the memory limit argument. To use it, simply multiply the GB of VRAM your card has by 1000 and subtract 2000-4000 to leave room for background processes. Without this, the game quickly becomes a mess.
Though most instability was fixed through launch options, massive sub-10fps frame dips still occured whenever crossing between rooms, making the game borderline unplayable. I downloaded the Ascendio III mod which removed many of these stutters and greatly reduced the severity of the rest. Simply find it on Nexus, click the download for Linux option, and follow instructions it gives.
Looked like a 2009 game before launch command on AMD GPU because of constant artifacts and pop-in. After tweaks it runs perfectly.
radv_legacy_sparse_binding=true radv_zero_vram=true RADV_DEBUG=nodcc %command%
Had awful graphical artifacts before using launch command on AMD GPU. Others listed didn't work. The annoying pop can be fixed by navigating to "/home//.local/share/Steam/steamapps/compatdata/2677660/pfx/drive_c/users/steamuser/Saved Games/MachineGames/TheGreatCircle/base/TheGreatCircleConfig.local" and inserting the value: r_lodscale “5”. Links I used:
https://www.reddit.com/r/SteamDeck/comments/tzov2z/where_is_a_games_config_file_on_steam_os/
Must use launch command to get rid of glowing eye artifact and inconsistent light shafts.
Mouse side buttons were undetected
MAKE SURE to fix the pop-in before playing. Proton Experimental looked a little better than GE. May need to update Radeon Drivers.