It's kind of boring at the begining, but then picks up well as it goes along. The problem with that lies in the game's length, about the time your really starting to enjoy it, it's over. Also, the weapon system, while inovative, is quite clunky. I don't mean for this to come off sounding so negative, because I did enjoy the game quite a bit. It's just that this started as a Half-Life mod...IMO it's still just a Half-Life mod (problem being it's a $39.95 mod that I finished in just over one day). Pick it up, but not at 40 bucks.