
DiamondSlug
Published
6.20-GE-1 GloriousEggroll
The game runs well by using Proton-6.20-GE-1 and setting Launch Option to PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr %command% -dx12
Other reports says this enables both DLSS and RT but I only got RT working. Without DLSS I still got around 50 FPS (render resolution is 1920x1080 while the display is 2K). Everything looks perfect and there's no slow down or stutter at all.
The native version lacks of windowed mode. To fix that, we can use a nested X server such as Xephyr. We edit Disgaea2SteamOS.sh file in the root directory of the game and add
Xephyr -br -ac -noreset -screen 800x600 :1 &
export DISPLAY=:1
somewhere before exec "${PROGRAM}" "$@"
for creating a 800x600 window and run the game inside it.
Without the tweaks a proper windowed mode cannot be triggered.
Native version does not work but Proton version works perfectly.
The native version does not start. Proton works but there is a scroll bar on the right of the window when the game is running, and steam showed it still running after the game was closed. Everything else works fine.
prime-run %command%
Native and Proton saves are not synced but you can copy either of them to the other.
The native version does not work for me so I have to try the proton ones. Only Proton 4.11 makes it work and it works really well. All other versions shows a white screen.