Halo Franchise Guide | All Games, Timeline & Legacy 2026

What Is Halo | The Xbox-Defining Franchise

Halo is a military science fiction first-person shooter franchise created by Bungie and now developed by Halo Studios (formerly 343 Industries) under Xbox Game Studios. Since the launch of Halo: Combat Evolved alongside the original Xbox on November 15, 2001, the series has sold over 81 million copies worldwide, generated billions in revenue, and established itself as one of the most recognizable and influential brands in gaming history.

The core Halo experience follows the Master Chief, a genetically enhanced supersoldier designated SPARTAN-117, as he battles the Covenant (a theocratic alliance of alien races), the parasitic Flood, and later the Forerunner-created Prometheans across a sprawling science fiction universe. The series is renowned for its tight gunplay, memorable sandbox encounters, orchestral score by Martin O'Donnell and Michael Salvatori, and a multiplayer suite that defined online console gaming for a generation.

Halo's cultural impact extends beyond games into novels (over 30 published), comic series, animated films, live-action television (Paramount+ series, two seasons), action figures, and a dedicated esports scene through the Halo Championship Series (HCS). The franchise is also deeply tied to Microsoft's broader gaming strategy, serving as the flagship exclusive for every Xbox console generation.

In 2026, the franchise is undergoing its most significant transformation since Bungie's departure: a full Unreal Engine 5 ground-up remake of the original game, rebranded as Halo: Campaign Evolved, launching on PlayStation 5 for the first time in series history.

Halo: Combat Evolved (2001) | The Original That Started It All

Released: November 15, 2001 | Platform: Xbox | Developer: Bungie

Halo: Combat Evolved was the launch title that defined the original Xbox. Developed by Bungie (fresh off the Myth and Marathon series on Mac), Halo introduced players to the ringworld Installation 04, the Master Chief, Cortana, the Covenant, and the Flood in a single, tightly paced campaign.

The game was revolutionary on multiple fronts:

• Two-weapon system: Players could carry only two weapons at a time, forcing tactical decisions about loadout rather than carrying an arsenal. This became a series hallmark.
• Regenerating health: Halo popularized the rechargeable shield system (overshields that regenerate after avoiding damage) combined with health packs, a system that influenced virtually every FPS that followed.
• Vehicle sandbox: The Warthog, Ghost, Scorpion tank, and Banshee offered vehicle combat that felt integrated into the campaign rather than bolted on. The Warthog run escape sequence remains one of gaming's most iconic moments.
• AI enemies: Covenant enemies communicated with each other, took cover, flanked, and reacted to player actions in ways that felt alive compared to contemporaries.
• Split-screen multiplayer: Four-player split-screen on a single Xbox created countless dorm-room and living-room memories. Blood Gulch became the most replicated multiplayer map in FPS history.

Combat Evolved sold over 5 million copies on the original Xbox and was re-released in 2011 as Halo: Combat Evolved Anniversary for Xbox 360 with updated graphics and online multiplayer. In 2026, it is being rebuilt from scratch in Unreal Engine 5 as Halo: Campaign Evolved.

Halo 2 (2004) | The Multiplayer Revolution

Released: November 9, 2004 | Platform: Xbox | Developer: Bungie

Halo 2 is arguably the most important game in Xbox history. It was the first console game to fully realize online multiplayer through Xbox Live, creating a template that every console shooter has followed since.

Key innovations and milestones:

• Xbox Live launch: Halo 2 was the killer app for Microsoft's online service. At its peak, it had over 2 million unique monthly Xbox Live users, a staggering number for 2004-2005.
• Matchmaking system: Bungie's TrueSkill ranking system was the first console matchmaking algorithm that actually worked, pairing players of similar skill levels.
• Dual-wielding: Players could carry two one-handed weapons simultaneously, doubling firepower at the cost of grenade usage.
• Arbiter campaign: For the first time, players controlled a Covenant character (the Arbiter), expanding the narrative perspective beyond the Master Chief.
• Cliffhanger ending: Halo 2's infamous ending ("Finish the fight") was controversial at launch but has since been reappraised as a bold narrative choice.

Halo 2 sold approximately 8.5 million copies worldwide. It was re-released as part of The Master Chief Collection in 2014 with full Xbox Live backward compatibility and anniversary cutscenes.

Halo 3 (2007) | The Masterpiece

Released: September 25, 2007 | Platform: Xbox 360 | Developer: Bungie

Halo 3 is the best-selling Halo game of all time and widely considered the peak of the original trilogy. With over 14.5 million copies sold, it was the defining game of the Xbox 360 era and the centerpiece of the console's 2007 holiday lineup.

What made Halo 3 special:

• Campaign conclusion: "Finish the fight" delivered. The campaign wrapped up the Master Chief-Arbiter-Covenant-Flood saga with epic set pieces, the introduction of the Brute Chieftain Tartarus, and an emotional Warthog escape finale that rivaled the original.
• Forge mode: A revolutionary map editor that let players modify multiplayer maps in real-time, spawning an entire subculture of custom game types and machinima.
• Theater mode: Players could record, replay, and edit their multiplayer matches from any camera angle. This single feature launched the Halo machinima scene (Red vs. Blue, Arby 'n' the Chief) and became a template for every game's replay system since.
• Four-player co-op: The full campaign was playable with up to four players online, a first for the series.
• Multiplayer sandbox: Halo 3's multiplayer is still played competitively today through MCC. Maps like Valhalla, The Pit, Guardian, and Narrows are considered among the best in FPS history.
• Equipment system: Deployable items like bubble shields, trip mines, and grav lifts added tactical depth to multiplayer encounters.

Halo 3's launch was a cultural event. It grossed $170 million in its first 24 hours in the United States alone, a record at the time. The game's marketing campaign, including the "Believe" diorama ads and the "Starry Night" trailer, is still studied in marketing textbooks.

Halo 3: ODST (2009) | The Side Story

Released: September 22, 2009 | Platform: Xbox 360 | Developer: Bungie

Originally conceived as an expansion, Halo 3: ODST was released as a standalone title. It told a smaller, noir-inflected story set during the events of Halo 2, following Orbital Drop Shock Troopers (ODSTs) rather than the Master Chief.

ODST was notable for:

• No shields: Playing as a regular human soldier rather than a Spartan made combat more tense and tactical. Health did not regenerate automatically, requiring players to find health packs.
• Open-world hub: The ruined city of New Mombasa was explorable between missions, with audio logs telling a parallel story of a rookie trying to find his squad.
• Firefight mode: A wave-based survival mode that became a fan favorite and was carried forward into future Halo titles.
• Atmosphere: ODST's nighttime urban setting, jazz-influenced soundtrack, and film noir aesthetic made it one of the most tonally distinct entries in the series.

ODST sold approximately 3 million copies and has developed a cult following over the years. It is included in The Master Chief Collection.

Halo: Reach (2010) | Bungie's Farewell

Released: September 14, 2010 | Platform: Xbox 360 | Developer: Bungie

Halo: Reach was Bungie's final Halo game before departing Microsoft to work on Destiny. It served as a prequel to Combat Evolved, telling the story of the fall of the human colony world Reach to the Covenant.

Reach introduced several significant changes:

• Playable Spartan team: Players controlled Noble 6, a member of the Noble Team Spartan squad. Each team member had distinct personalities and abilities, creating emotional stakes as they fell one by one.
• Armor Abilities: Sprint, jetpack, active camouflage, hologram, and drop shield replaced the equipment system, giving players more mobility options.
• Loadouts: Players could customize their starting weapons and armor abilities in multiplayer, a controversial change that some felt diluted Halo's equal-start philosophy.
• Bloom mechanic: A reticle bloom system for precision weapons was divisive among competitive players but added a skill gap element.
• Forge World: A massive, customizable Forge canvas that became the definitive space for custom map creation.

Reach sold over 9 million copies and is often cited as having the best campaign story in the series. Its ending, where Noble 6 fights alone against an endless Covenant army before succumbing, is one of gaming's most memorable final stands.

Halo 4 (2012) | The 343 Era Begins

Released: November 6, 2012 | Platform: Xbox 360 | Developer: 343 Industries

Halo 4 marked the first Halo game developed without Bungie. 343 Industries, a new studio formed by Microsoft specifically to manage the Halo franchise, delivered a visually stunning game that pushed the Xbox 360 to its limits.

Key elements of Halo 4:

• New enemy faction: The Prometheans replaced the Flood as the primary non-Covenant threat. Forerunner constructs with teleportation abilities and hard-light weapons offered a different combat dynamic.
• Character focus: Halo 4 deepened the relationship between Master Chief and Cortana, exploring Cortana's rampancy (AI deterioration) as a central narrative theme. The emotional weight of the story was widely praised.
• Visual overhaul: 343 rebuilt the Halo art style with more detailed character models, Forerunner architecture, and lighting. The Didact's design and the Forerunner world Requiem were visual highlights.
• Spartan Ops: A episodic co-op mode that continued the story after the campaign, released weekly. It was ambitious but ultimately short-lived.
• Multiplayer changes: 343 introduced loadouts, killstreak-style ordnance drops, and perks, moving Halo further from its equal-start roots. The changes were controversial among competitive players.

Halo 4 sold approximately 9.5 million copies and received strong critical reviews. It proved that 343 could make a technically impressive Halo game, though the multiplayer direction set up debates that would continue through Halo 5.

Halo 5: Guardians (2015) | Controversy and Change

Released: October 27, 2015 | Platform: Xbox One | Developer: 343 Industries

Halo 5: Guardians was the most controversial entry in the series. It introduced dramatic gameplay changes while its marketing campaign promised a story it did not deliver.

What Halo 5 changed:

• Spartan Abilities: Thruster pack, ground pound, Spartan charge, clamber, and sprint were baseline abilities for all players. This dramatically increased player mobility and changed the core combat loop.
• Warzone mode: A 12v12 large-scale mode with AI enemies, boss fights, and REQ card loadouts. Warzone was ambitious and popular with casual players but did not replace traditional Arena multiplayer for competitive fans.
• Marketing controversy: The "Hunt the Truth" marketing campaign suggested the Master Chief had gone rogue and Locke was hunting him. The actual campaign featured Chief and Locke working together for most of the story, creating a massive disconnect between marketing and reality.
• Four-player co-op: The campaign supported four-player co-op throughout, with each player controlling a different Spartan from Blue Team or Fireteam Osiris.
• Breakout mode: A round-based, elimination-style competitive mode with no radar and one-life-per-round gameplay.

Halo 5 sold approximately 5 million copies, a significant drop from previous entries. The campaign's narrative misstep and the multiplayer's departure from classic Halo formulas left the franchise at a crossroads.

Halo Infinite (2021) | Open World Reset

Released: December 8, 2021 | Platform: Xbox Series X|S, Xbox One, PC | Developer: 343 Industries

Halo Infinite was positioned as a "spiritual reboot" for the franchise. It launched as a launch title for the Xbox Series X|S generation and represented 343's attempt to return to the series' roots while modernizing the formula.

Infinite's defining features:

• Open world campaign: The Zeta Halo ringworld was a semi-open world with FOBs, side objectives, and freedom to approach missions in any order. The grappling hook (Grappleshot) was universally praised as the best new addition to Halo's sandbox since the Energy Sword.
• Return to classic art style: 343 abandoned the overly complex Forerunner designs of Halo 4 and 5 in favor of a cleaner, more Bungie-era aesthetic. The Chief's armor, the Covenant designs, and the ringworld itself all felt like classic Halo.
• Free-to-play multiplayer: Infinite's multiplayer was released as a free-to-play title, separate from the campaign. This dramatically expanded the player base but also introduced a battle pass and cosmetic microtransaction system.
• Live-service struggles: Infinite launched with a limited multiplayer map pool, no campaign co-op at launch, no Forge mode at launch, and a slow content cadence that frustrated the community. Forge (released in 2023) and network co-op arrived over a year late.
• Story reset: The campaign sidelined the Created storyline from Halo 5 and introduced a new Banished faction (originally from Halo Wars 2) as the primary antagonist. The Endless, a new threat introduced in the campaign, set up future storylines.

Halo Infinite's player count declined sharply after launch due to content droughts. By 2024, 343 had largely wound down active development on Infinite, redirecting resources to the UE5 remake project. Despite its troubled live-service execution, Infinite's core gameplay and campaign are widely regarded as excellent.

Halo: Campaign Evolved (2026) | The UE5 Remake Era

Released: July 28, 2026 | Platform: Xbox Series X|S, PC, PlayStation 5 | Developer: Halo Studios

Halo: Campaign Evolved represents the most dramatic transformation in franchise history. After the live-service struggles of Halo Infinite, 343 Industries rebranded to Halo Studios and made the strategic decision to rebuild the original Combat Evolved from scratch in Unreal Engine 5.

Key details about Campaign Evolved:

• Full UE5 rebuild: Every asset, every level, every encounter from the original Combat Evolved has been rebuilt using Unreal Engine 5's Nanite and Lumen technologies. The result is a version of Halo that looks like a modern AAA game while preserving the original's level design and pacing.
• Operation Meteorite: Three entirely new missions co-written by veteran Halo novelist Troy Denning. These missions expand the story of Installation 04 with new encounters, environments, and lore that integrates seamlessly with the original campaign.
• No PvP multiplayer: Campaign Evolved is campaign-only. Halo Studios has stated that a separate multiplayer title is in development for a later release.
• 4-player crossplay co-op: The full campaign supports four-player online co-op with full crossplay across Xbox, PC, and PlayStation 5. This is the first Halo game on a PlayStation platform.
• 42 Skulls: A new "Campaign Remix" mode with 42 unlockable Skulls that modify gameplay in increasingly absurd and challenging ways, including new Skulls never before seen in the series.
• Price and availability: $49.99 standard edition, $79.99 Collector's Edition (includes Sergeant Johnson statue). Available day one on Xbox Game Pass.

Campaign Evolved is the first test of Halo Studios' new direction. If successful, it could lead to UE5 remakes of Halo 2 and 3, effectively rebuilding the entire original trilogy for modern hardware and new audiences on PlayStation.

For full coverage, see our dedicated guide: Halo Campaign Evolved | Everything to Know Before July 28.

Spin-offs | Halo Wars, ODST, and More

Beyond the mainline FPS entries, the Halo franchise has expanded into several other genres:

• Halo Wars (2009): A real-time strategy game developed by Ensemble Studios (Age of Empires). Set 20 years before Combat Evolved, it followed the crew of the UNSC Spirit of Fire. Halo Wars was praised for bringing RTS controls to console successfully. Sold approximately 2 million copies.
• Halo Wars 2 (2017): Developed by Creative Assembly (Total War). Continued the Spirit of Fire story with the introduction of the Banished, who would later become the primary antagonists of Halo Infinite. The Awakening the Nightmare DLC added a Flood-focused campaign.
• Halo: Spartan Assault (2013): A top-down twin-stick shooter for mobile and Windows 8. Set between Halo 3 and Halo 4.
• Halo: Spartan Strike (2015): A sequel to Spartan Assault with similar gameplay.
• Halo: Fireteam Raven (2018): An arcade rail shooter developed by Play Mechanix. Set during the events of the original Halo: Combat Evolved.
• Halo: The Television Series (2022-2024): A live-action Paramount+ series set in the "Silver Timeline" (a separate continuity from the games). Two seasons aired before Paramount+ opted not to renew for a third season. The series was a commercial success but received mixed reviews from fans and critics.

Halo: The Master Chief Collection | The Definitive Compilation

Released: November 11, 2014 (Xbox One) | Developer: 343 Industries

Halo: The Master Chief Collection (MCC) is the definitive way to play the classic Halo games on modern hardware. It includes:

• Halo: Combat Evolved Anniversary (2011 remaster)
• Halo 2 Anniversary (2014 remaster with fully remade cutscenes by Blur Studio)
• Halo 3
• Halo 3: ODST (added as paid DLC in 2015, included in later versions)
• Halo: Reach (added in 2019)
• Halo 4

MCC launched with severe matchmaking and networking issues that took years to fully resolve. By 2020, 343 had largely fixed the technical problems, and MCC became the definitive home for classic Halo multiplayer. The collection received continuous updates through 2023, including input-based matchmaking, custom game browser, mod support on PC, and seasonal content.

MCC has sold over 10 million copies across Xbox One, Xbox Series X|S, and PC (Steam and Windows Store). It remains the most active platform for competitive Halo multiplayer outside of Halo Infinite.

Sales and Cultural Legacy | 81 Million Copies and Counting

The Halo franchise has sold over 81 million copies worldwide across all platforms as of 2026, making it one of the best-selling video game franchises of all time. The sales breakdown by mainline entry:

Beyond sales, Halo's cultural legacy includes:

• Pioneering online console multiplayer: Halo 2's Xbox Live implementation set the standard for every console FPS that followed.
• Machinima birth: Red vs. Blue (2003-present) by Rooster Teeth was created using Halo's multiplayer and spawned an entirely new medium of digital storytelling.
• Esports foundation: The Halo Championship Series (HCS) has been running since 2005 in various forms, making Halo one of the longest-running competitive FPS scenes.
• Xbox brand identity: Halo is synonymous with Xbox in the same way Mario is with Nintendo. No other franchise has been as central to a console platform's identity.

The Future of Halo | 2026 and Beyond

Halo enters its 25th year in a period of transition and cautious optimism. The key threads to watch:

• Campaign Evolved reception: The July 28 launch of Halo: Campaign Evolved is the most important product release in the franchise's history. Strong sales and positive reception would validate Halo Studios' UE5 strategy and the multi-platform approach.
• Halo 2 UE5 remake: If Campaign Evolved succeeds, a Halo 2 remake in UE5 is the logical next step. Halo 2's multiplayer was the series' peak, and a modernized version with full crossplay could be a massive hit.
• Standalone multiplayer title: Halo Studios has confirmed a separate multiplayer game is in development. Whether this is a free-to-play Infinite successor or a paid premium title remains unknown.
• PlayStation expansion: Campaign Evolved marks Halo's first appearance on a PlayStation platform. If sales are strong, future Halo titles launching simultaneously on Xbox and PlayStation could become the new normal.
• Halo television and film: Despite the Paramount+ series cancellation, Microsoft remains interested in Halo adaptations. A film or new series on a different platform is considered likely within the next 3-5 years.

Halo has survived the departure of its original creator, a controversial studio transition, a disastrous live-service cycle, and declining sales. With Campaign Evolved, the franchise is betting on a return to its roots: great single-player campaigns, built on modern technology, available to the widest possible audience. Whether that bet pays off will define Halo's next 25 years.