An expansion pack titled "Millennium Expansion Pack" was released in 2000. It adds nine levels for single- and multiplayer, the ability to save within levels and new weapons for the marine. A compilation package titled "Aliens versus Predator: Gold Edition" was also released in 2000. It contains the main game and the expansion. An Apple Macintosh version, for OS X and classical Mac OS, based on the "Gold Edition" was released by MacPlay in 2001. A version for Game Boy Advance was to be developed and published by Ubisoft, but eventually canceled.