The thing about zomboid is...it just makes me want to play cataclysm dark days ahead with the sky island mod and I get itchy without that brilliant anarchism and freedom cataclysm brings to the entire experience.
Zomboid will get there, and it isnt bad by any means.
7 days to die also runs great on the deck (tho it is 3d fps/tps) and has quite a few good modpacks that use it as a base, easy to underappreciate the game because development has been all over the place.
Another game to think about, dayz (modded and vanilla) actually runs decent on the deck.