Some small niche games that I grew up with, that I am playing again with my Steam Deck:
God Hand - A third person beat em up that is funny, and really good. Full of flavor. Complete flop.
Psi-Ops: The Mindgate Conspiracy - A third person shooter with psionic powers used as its main selling point. Good dumb fun on the PS2.
Spyhunter & Spyhunter 2 - A shockingly good reboot of Spyhunter by Midway games, where you have a car that transforms its mode depending on the mission. Part racing game, part spy game.
I-Ninja - A 3d action platformer that has Billy West as the lead, a ninja who accidentally killed his Master and now has to get him back and collect bullshit trinkets. Clearly more “just dumb fun” than anything serious.
007: Nightfire - The best James Bond game ever made. Better than Goldeneye. Plays like its an original movie, with solid gameplay, and I spent as many hours on the local multiplayer as I did with Halo. I didn’t see that, but I wanted to share that I love that game.
Evil Dead A Fistful of Bootstick - Still need to play more to see if it holds up, but its an original story featuring Bruce Campbell voice acting.