Microsoft announces Halo Infinite during the Xbox Games Showcase, revealing the game alongside the new Xbox Series X console.
The first gameplay trailer for Halo Infinite is shown, featuring the Master Chief and showcasing the new game engine and open-world elements.
343 Industries announces that Halo Infinite's release will be delayed from Holiday 2020 to 2021 to further polish the game after mixed reactions to the initial gameplay reveal.
343 Industries announces a technical multiplayer flight test (beta) for Halo Infinite to gather player feedback ahead of full launch.
The technical preview (beta) for Halo Infinite multiplayer officially launches, allowing players to experience the multiplayer component early and provide feedback.
Halo Infinite is officially released for Xbox Series X/S, Xbox One, and PC, launching with multiplayer free-to-play and the campaign mode.
343 Industries begins regular seasonal content updates for Halo Infinite, adding new maps, weapons, and events to the multiplayer experience.
Master Chief is dispatched to the Zeta Halo ring to investigate and combat the Banished threat.
Master Chief crash-lands on Zeta Halo and begins his mission to locate the Pilot and stop the Banished.
Master Chief encounters Weapon, an AI with deep ties to Cortana and the Created, presenting a new threat.
Throughout the campaign, the Chief dismantles key Banished outposts to weaken their hold on Zeta Halo.
Master Chief rescues his Pilot companion, solidifying a key alliance and restoring tactical support.
The Chief faces off against the Banished warlord Escharum in a decisive battle.
With the defeat of the Banished leadership, Master Chief secures control over Zeta Halo and prevents the activation of its destructive capabilities.
