I guess, but Windows 7 doesn't lose Microsoft support until 2020, and that is probably when most programs will end up losing support for it too, because Windows 7 is still very popular. I still play Minecraft on Windows XP, but war games will require something newer. I can't even play Tanki, a simple battle game where you drive around destroying tanks and being destroyed more often. Of course, that may be because my Windows XP is 32-bit. It might work ok on 64-bit XP, work decently on 32-bit 7 and up, and should work excellent on 64-bit anything else.
Anyways, I don't want Windows 10 until that is what I absolutely need in order to do anything.