Aliens versus Predator Classic 2000. This is the updated version of Rebellion’s best stab at AvP, which originally released in 1999, and was published by Fox Interactive.
You can grab the game by heading over to Rebellion’s storefront, where the offer is displayed proudly on the front page. There is a minor catch. You have to sign up to Rebellion’s newsletter, after which a Steam key for the game will be sent to you.