Nex Machina

This is easily one of the finest pure arcade games I've played in years. A bullet hell that modernizes classic arcade games, offering them in a polished, enjoyable, and high-quality package. Serves its purpose completely.

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.

Best soundtrack and fun arcade shooter game to play!

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

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

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%

Pure twin stick shooter bliss! Made by House Marque too (Returnal & Resogun) so peep the gameplay trailer, then cop it if u dig twin sticks... Gamepad HIGHLY recommended!
I play it on Steam Deck, runs fine, but I did have to run a script (quick copy and paste job) from Proton DB