Phantom Dust on the original XBox. I think MS released it for free on PC a while back.
Deck building game. But you then run around third-person battling multiplayer or bots.
Each card is a skill and you cast those skills. Some are one time. Some are multi-use. The gameplay didn’t catch on, but it was amazing. With the proliferation of deck-builder hybrids now I am surprised a clone or something hasn’t come out.
Out of Space is a ton of fun, starts out hard, but stock with it and you can overcome.
Others I’ve seen mentioned already, but deserves more: Lovers in a Dangerous Spacetime and It Takes Two