A great FPV ego shooter like back in the old days. No pseudo-modern stuff like auto-healing and such nonsense. Nice and complex levels which are fun to make your way through - especially when you try to find short-cuts. When I got the email notification about DOOM 2016 is available on GOG, I've bought it within a minute. And I couldn't really await the 63 GB download to finish. It's just a must-have for any fan of classic ego shooters!