The oldest remember it, Chasm: The Rift is an old Ukrainian FPS released in 1997. This Quake-like Will be back on Steam in October. So beware, this is neither a remaster is it remake. Nevertheless, the developers have made a small facelift with, for example, support for modern resolutions, some HD textures and a redesign of the sound design. You can see what it looks like in the trailer. The Steam page with all the information is over here.
