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Welcome to Halopedia, the Halo wiki.

The definitive source for Halo information since November 4, 2004 and home to 16,727 articles.

Featured Article

Halo 3: ODST Firefight

The original wave survival mode.

Firefight (Halo 3: ODST)

Featured Quote

"I'm not sure what that thing is. Don't look like any 'uneven elephant' to me-—more like two squids kissing."

— Avery Johnson, regarding Unyielding Hierophant.

Featured Image

Severan

Concept artwork for Voridus in Halo Wars 2, reused to depict War Chief Severan. Artwork by Theo Stylianides.

Severan

About Halo

Latest Game Update

Operation Infinite

The current Halo Infinite update!

Infinite (Operation)

Halo is a franchise of first-person shooter video games created by Bungie Studios beginning in 2001 with Halo: Combat Evolved for the Xbox game console. Since then, the series has grown to include sequel and spin-off games and a multimedia expanded universe, becoming one of the largest IPs for Xbox Game Studios and an icon in gaming as a whole. In 2011, Bungie stepped away from Halo and passed the torch onto 343 Industries, which has managed the franchise ever since before its rebrand to Halo Studios in late 2024.

The series is set in the far future and focuses on the character of the Master Chief, a cybernetically-enhanced supersoldier fighting to defend humanity from a variety of alien threats, and Cortana - a state-of-the-art artificial intelligence construct that resides within his armor.

Release calendar

Latest Release

Edge of Dawn

The latest Halo novel, released December 2025!

Halo: Edge of Dawn

Upcoming

Recently-released

Halo Infinite Operations

Infinite

Halo Waypoint Chronicles

Halo: Fifth Canticle

Halo novels

This Month in Halo

March

Real-world

1998	blam.org and blam.net were registered by Bungie.
1999	The second Cortana Letter is released.
2004	Halo Custom Edition is released by Gearbox Software for PC.
2009	Halo Wars is released by Ensemble Studios for Xbox 360.
2011	the Defiant Map Pack is released by Certain Affinity for Halo: Reach.
2012	Bungie studios ends all involvement with Halo, disconnecting Bungie's web services from Halo: Reach.
2013	the novel Halo: Silentium and the Forge Island DLC for Halo 4 are released.
2015	the Hunt the Truth audio drama begins and the novel Halo: New Blood is released.
2017	the Morgan Kinsano DLC for Halo Wars 2 is released.
2020	Halo: Combat Evolved Anniversary is released on PC.
2021	the novel Halo: Point of Light is released.
2022	Contact, the first episode of Halo: The Television Series, is released.
2023	Season 03: Echoes Within is released for Halo Infinite.
2025	the short story Halo: From the Soil to the Stars is released.

In-universe

2170	The Callisto Treaty is signed by the United Nations Space Command, Friedens, and Koslovics, ending the Interplanetary War.
2396	Ord Casto, the future High Prophet of Truth, is born.
2494	three UNSC destroyers engage Insurrectionists in the Callisto Incident, igniting the Insurrection.
2511	the future SPARTAN-IIs John-117, Linda-058 and Jorge-052 are born.
2525	the Office of Naval Intelligence classifies Onyx, and the SPARTAN-II candidates undergo their augmentations.
2526	The Battle of Harvest is fought, resulting in the first major UNSC victory of the Human-Covenant War.
2531	the crew of UNSC Spirit of Fire enter cryostasis after narrowly escaping the Battle of Trove.
2549	the Algolis Invasion begins; Atriox rebels against the Covenant during the battle, forming the Banished.
2553	a ceremony is held at a memorial near Voi, marking the end of the Human-Covenant War.
2555	Operation: FAR STORM takes place on the Ark.
2559	UNSC Spirit of Fire arrives at the Ark, beginning the Second Ark Conflict.

Did you know..?

...that Kirk-018 is a SPARTAN-II who was crippled during his augmentations?
...that the ancient Kig-Yar experienced a gladiatorial era on Eayn?
...that the bioaugmentation program of the SPARTAN-IIIs was codenamed Project CHRYSANTHEMUM?
...that the BR55 battle rifle is replaced by the Suppressed SMG in Halo 3: ODST?
...that a mysterious email was sent out containing references to Halo 3 before its release?