I can see DayZ creeping to get back to the 1st place. There are also surprisingly many indie games on this list. I hope that "AAA" publishers can learn from that.

How Awesome!! that is the first time I have seen Space Engineers on the list... has it been on there before? It is such a fun game xD

Forest seems to have a pretty good stand in the top10. Looks like a rather well selling title for early access (is it still?)

I really can't see the appeal of DayZ, not withstanding that it is built on top of the Arma game engine and control system, which is just plain awful, all the stuff I've seen on youtube seems to be douchebags playing a game that lets them act like douchebags to other douchebags.... oh and sometimes they hit a zombie or two with an axe.