I really enjoy games with desolate, derelict public or specialized spaces. Malls, transportation hubs, stores, offices, maintenance quarters, etc. Places that you only visit or pass when they are full of people and can't do anything there because they are guarded/monitored, or you don't have access to them because you don't work there. But now you have them all to yourself. It's very comfy. I'm not talking dystopian/post-apocalyptic, that's more of a different genre, but specifically vacated like due to an epidemic or a rapture where everything is largely intact and working, equipment buzzing, but void of people.