Ignore that Caves of Qud is one of the best roguelikes out there and is just straight up weird.
Qud is also probably one of the best Steam Deck experiences out there because the devs (singular?) put the work in to make an amazing interface that controls spectacularly on a keyboard, with a mouse, or with a gamepad.
So... yeah. Caves of Qud. Curses-ish based roguelike and one of the best Steam Deck games to ever exist.