Microsoft announced the development of Halo Wars, a real-time strategy game set in the Halo universe, expanding the franchise beyond its traditional first-person shooter genre.
Halo Wars was officially released worldwide for the Xbox 360, marking a significant expansion of the Halo franchise into real-time strategy gameplay.
The Definitive Edition of Halo Wars was released for Windows PC and Xbox One, featuring enhanced graphics and revamped controls for modern platforms.
The UNSC ship Spirit of Fire is activated and begins its mission to explore unknown territories.
Spirit of Fire jumps through slipspace to investigate the Halo Array, marking humanity's attempt to understand and potentially control the mysterious Forerunner installations.
Spirit of Fire arrives at Installation 04, the first Halo ring discovered by humanity, starting engagement with Covenant forces stationed there.
Spirit of Fire's forces have their first major confrontation with Covenant troops on the Halo ring, signaling the start of ongoing conflict.
Spirit of Fire's team discovers powerful Forerunner technology which could be pivotal in the war against the Covenant and Flood threat.
The parasitic Flood are accidentally released on Installation 04, creating a new and dangerous threat to all factions present.
UNSC forces fortify the Spirit of Fire against Covenant and Flood attacks to preserve humanity's last hope of survival on the Halo ring.
UNSC commanders lead attacks to disable critical Covenant infrastructure, crippling their ability to wage war on the ring.
Serina, the AI aboard the Spirit of Fire, is integrated into mission planning and tactical operations, enhancing UNSC combat effectiveness.
Spirit of Fire makes a desperate push to escape Installation 04 as the ring's self-destruct sequence is triggered, ensuring the destruction of the Halo Array to prevent Flood spread.