I downloaded a demo of it awhile back to see how well it would run on my system. It was a pretty fun game. While I obviously can't judge too much based on just the demo, the single player just seemed average. It was the kind of thing where if I wanted to play a single player game of that style, I would just play Doom 3. I generally look to the Quake series for multiplayer matches. The multiplayer was fun, but again I preferred Unreal Tournament 2004. Regardless, the Quake railgun remains one of my favorite FPS weapons.