It may surprise some of you, but yes, it does. (At least, for me)
After upgrading to Windows 10, I played around with some of my games to see if they were changed in any way. Darkest Dungeon, Team Fortress 2, Garry’s Mod, League of Legends, and Dirty Bomb were some of the games I played around with after upgrading to Windows 10. Surprisingly, I didn’t have any problems.
To provide evidence that I had no problems with Dirty Bomb and Windows 10, I took screenshots.
Please note that I changed Dirty Bomb to a “windowed” setting so you could see the game and Windows 10 at the same time. That was the only setting I changed.
The settings screen: http://i.imgur.com/Pmjhbvz.png
The pre-game lobby: http://i.imgur.com/Sfq8e8X.png
The load screen: http://i.imgur.com/7IGzG8e.png
The starting few seconds: http://i.imgur.com/YVv3IWK.png
The match report: http://i.imgur.com/zTw7W7h.png
Remember! These were MY results from playing. The same may not happen to you. I had no problems playing Dirty Bomb on Windows 10, but the same may not happen to you.
Upgrade at your own risk.