At the moment on Steam: Gamepad-friendly-games-sale [ I would give it that name :3 ].
There are about 100 Games and DLC's for sale that you can play with a controller.( not important for me but there are some cool games :3 )
There are about 100 Games and DLC's for sale that you can play with a controller.( not important for me but there are some cool games :3 )