I personally can't. Maybe 4 or 5 hours but after that I'm sick of it and simply have to go out or do something productive. I tried to force it once, played Nier Automata for 20 hours in 2 days over a weekend and even with a break where I went for a long walk I really didn't enjoy that, thought that it would've been better if I played it in smaller chunks. But what about you?