Nex Machina

This is exactly what I want to play on Steam Deck. A polished modern arcade game with nonstop action, great music and high production standards. So fun to play and I’m always ready to jump in for another round.
Made before Steam Deck existed, so use the following suggestions from Protondb.com:
Tinker Steps: Custom Proton: Proton 7.0-6,
Set launch options:
PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 PULSE_LATENCY_MSEC=60 %command%

Excellent game. It worked in the steam deck after some tweaks, but it wasn't able to achieve full 60 FPS. Still this game is unparalleled, and I think it is my gateway to hardcore arcade games.

My only issue is the co op play. Only local co op is available, and options to do pc streaming like steam remote play and parsec are insufficient due to the fast action of the game and the impressive amount of particles and effects the game shows, which for sake of lower latency the stream picture will be compressed to the point where it is barley watchable by the guest.

Satisfying. Has co-op, which is nice. Great soundtrack

Absolutely glorious!
Amazing arcade shooter, pure fun and highly replayable, with an amazing OST.

It's a pretty solid game that I don't like playing at all. There's something about having to chase down the idiot humans every 2 seconds that I can't stand. I seriously hate it. It drives me crazy. The game is super polished. It's very fluid. In all respects it should be something I love, but I just don't. I don't even like it. I would pay some amount of money to not play it, if I were forced to for some reason. I strongly prefer something like Kill Knight. That game is tighter with more interesting weapon dynamics and there are no dumb, dumb, dumb as all hell humans to run around and collect like trophies for half of the gameplay loop.

Great arcade with stunning graphics, polished music and clear love for the genre.

It is a very updated, old fashioned Arcade bullet-heaven game, very cool.