X-COM: Alliance

X-COM: Alliance is a canceled video game in the science fiction series X-COM. The game was developed by three different teams of MicroProse developers (first as a subsidiary of Spectrum Holobyte, then Hasbro Interactive, and finally Infogrames Entertainment) between 1995 and 2002. Unlike other games in the X-COM series, most of which were strategy games, Alliance was a first person shooter. It was described as having "strategy, adventure, and RPG elements too."

Its initial working title was X-COM 4 (later X-COM 5); the project was code-named Fox Force Five to stop media leaks. After being officially announced in 1998 for a planned release in the first half of 1999, this highly anticipated game was repeatedly delayed and put on hold, before eventually becoming vaporware since 2002.