i too enjoy top-down action games on the deck. I’ve have good results with The Ascent, Hades, and the Hotline Miami games. I think Ruiner will be good but haven’t tried it on the deck yet.

i also love the retro 2d beat 'em ups like Streets of Rage 4 and TMNT: Shedder’s Revenge. Caveat: while good on the small screen i mainly did both with a group doing using local multiplayer on the TV. And we all used steam controllers because i am among the dozens who love those. put it all together and it’s like having a steam console.