I'm currently playing 7 Days to Die. I'm late to the game but with the new Alpha 21 update it runs pretty well on the Deck. I had to rework some of the bindings and set the loader to Vulkan compatibility but I'm getting a consistent 45 to 60 fps in all but the most crowded cities. Haven't gone past my 3rd horde night so I'm not sure how the masses are going to cripple the game. Having a lot of fun though.