960 is similar to a 1050 Ti in performance, so in performance it's not a big jump. However, the increase in vram can make it worth it. PUBG will gobble up a lot of memory if you like to increase the settings. So you'd have a much better experience in that game with a 1060. ARK is kind of resource hungry, so the more performance you can throw at it the better. I think for you a 1060 would be worth it.