Zkuq on 10 August 2016
Considering I've played none of the (with the expection of Doom's demo), my advise might not be all that good. However, judging by what I've heard about the games, I'd recommend you wait and see whether No Man's Sky is any good and get it if it is. If it's not, get Overwatch because you can probably get a lot more fun out of it than you can from Doom since Doom's multiplayer isn't supposedly that good.
Since NMS and Overwatch are full price anyway and Doom should be the last option, I don't think there's any reason you should not wait for some NMS reviews before making your decision. It's either the greatest thing ever or the biggest disappointment in years, and I wouldn't take that gamble myself.
