Alternative History

1999: The video corporation Bungie, developers of the video game Marathon, announce that they will be developing a new RTS video game code named "Halo".

2000: Unfortunately, Bungie decides to scrap the idea for Halo claiming that it would not be successful.

2001: Microsoft's video game console the Xbox only lasts for a short run after losing out to the Sony PS2, the Sega Dreamcast, and the Nintendo Game cube.

2004: The video game developers Guerrilla Games release Killzone for the Sony PS2.