Running on windows 10, the game has a few layers of unplayability without mods. Frequent crashes and mouse aiming that is VERY slow and choppy made it so I didn't even get through the tutorial. Compare this to Thief II which plays smoothly, flawlessly and has 1080p support, Thief 3 is just sad in comparison. It's much more playable with the sneaky update mod, but still not as seamless of an experience as Thief II is without mods.