SSC:R is unsupported for Steam Deck: Here's how Alligator Pit / CroTeam can fix it

[grub]

Serious Sam TFE, TSE, and Classics Revolution have broken graphics on Steam Deck with the default configuration. However, the fix for this is as simple as adding a single line to the game's config file.

gap_iDepthBits = 24;

Adding this line to '/Serious Sam Revolution/Scripts/Game_startup.ini' fixes the graphical issues.

Another problem is that windowed mode does not run above 60fps, which adds input lag. Making the game run in fullscreen by default will eliminate the input lag when the framerate is uncapped.

[puddingtopf]

Weird, because on PC the game gets capped at 60 FPS in fullscreen mode, and it gets unlocked in windowed mode.