The game inspired and was used in the fan-created Red vs. Its sequel, Halo 2, was released for the original Xbox in 2004, and the game spawned a multi-billion-dollar multimedia franchise that incorporates games, books, toys, and films. The game's popularity led to labels such as ' Halo clone' and ' Halo killer', applied to games either similar to or anticipated to be better than it. Halo was a critical and commercial success and is often praised as one of the greatest video games ever made. During development, Microsoft acquired Bungie and turned Halo into a launch game for its first video game console, the Xbox.

Initially, the game was a real-time strategy game that morphed into a third-person shooter before becoming a first-person shooter. Players battle aliens as they attempt to uncover the secrets of the eponymous Halo, a ring-shaped artificial world.īungie began the development of what would eventually become Halo CE in 1997. The Chief is accompanied by Cortana, an artificial intelligence. Halo is set in the twenty-sixth century, with the player assuming the role of the Master Chief, a cybernetically enhanced supersoldier. The game was later released as a downloadable Xbox Original for the Xbox 360. Microsoft released versions of the game for Windows and Mac OS X in 2003. It was released as a launch game for Microsoft's Xbox video game console on November 15, 2001.

Halo: Combat Evolved is a 2001 first-person shooter game developed by Bungie and published by Microsoft Game Studios.

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