There was also an attempt to make an Aliens total conversion mod using the Quake engine, but 20th Century Fox owned the rights and sold them to Sierra Entertainment to make the Aliens versus Predator game for the PC, which was released in 1999.
There was also an attempt to make an Aliens total conversion mod using the Quake engine, but 20th Century Fox owned the rights and sold them to Sierra Entertainment to make the Aliens versus Predator game for the PC, which was released in 1999.