Halo Nation

Untitled Halo MMO

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Intended HUD design.

“Ensemble has been wanting to make an MMO for a long time. That was in production for a long time. The Halo IP was a great IP to launch an MMO with. Microsoft... hasn't had the best track record with those.
And we worked on it for a long time--we had staffed up an almost-40 person team. And then there was some reorganization at Microsoft, and the new bosses thought it wasn't the best idea anymore. It had actually been green-lit, and then it got cancelled after that.”
— Dave Pottinger[1]

Between 2005 and 2007,[2] during the development of Halo Wars by Ensemble Studios, another three teams worked on other projects. One of these was an "Untitled Halo MMO", which seems to have been codenamed Titan or Orion project.


While concept art was produced, and Bungie planned to work with Ensemble Studios on the game, the other non-Halo Wars related teams were disbanded to focus on the RTS instead.[3] It was discontinued as Microsoft "decided that its Xbox platform and XBLA really needed to go more in the direction of appealing to a more casual, broader audience.”[2]

The details of the game remain unknown though the concept art shows various new additions to the franchise such as the Sentients, Runner-class Transport, Aardvark, Diggerz, Grackle, Jaggmaw Sawtail, Rhino, Psion and Rogue.[4] Former Ensemble employees have commented that, while comments comparing released screenshots and concept art comparing it to "WoW in Space" were accurate and that the early builds of the project drew inspiration from World of Warcraft for the basic structure and style, the more advanced builds were radically different before it was discontinued.[2]

“Just to give you a couple of examples, we were using a heroic stylised artform. This heroic stylised artform is exactly the artform that you see being used in Star Wars: The Old Republic right now. It’s timeless. It doesn’t age itself like a game that’s built with a strictly realistic artform does.
We were developing a cover system. This cover system is in Star Wars: The Old Republic. We had the idea of quests - and like I said, this was between 2004 and 2007, before Warhamer Online had been released - but we had this idea of quests where you could participate and pull them together without having to be on the same team. This would be a public quest that everyone in a particular area could work on. That idea went into Warhammer Online.”
— Dusty Monk, former Ensemble employee[5]


  • As evidenced by a piece of concept art shown below, it appears that both Thel 'Vadamee (before becoming the Arbiter) and Tartarus were going to appear in the MMO. It is unknown how big a role both would have played. It is also unknown whether the Sangheili in question shown in the concept art is actually Thel, as he may be a Zealot, not Thel.
  • Although it was never revealed when the events of the MMO would take place in the Halo timeline, because Tartarus appears in a piece of concept art, it can be inferred that the MMO would've taken place sometime before the events of Halo 2 (when Tartarus is killed by Thel 'Vadamee at the end).



Halo Games
Halo trilogyHalo: Combat Evolved (Anniversary)Halo 2 (Anniversary)Halo 3
Reclaimer SagaHalo 4Halo 5: GuardiansHalo 6
Other gamesHalo WarsHalo 3: ODSTHalo: ReachHalo Online
Top-down ShooterHalo: Spartan AssaultHalo: Spartan Strike
Multiplayer expansionsHalo Custom EditionHalo 2 Multiplayer Map Pack
Halo 3: Mythic
PortsHalo PCHalo 2 Vista
CollectionsHalo: The Master Chief Collection
BundlesHalo Triple PackHalo Origins Bundle
Cancelled titlesHalo: ChroniclesHalo MMOHalo DS

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