Kotaku received word that Robot Entertainment, a new studio formed by former Age of Empires developers, is working on a new strategy game for Microsoft. The game is called "Spartan", it seems to feature cute graphics but the gameplay should have a lot in common with the good old Age of Empires series.
It's not Halo. The game's other codename, Spartan, appears to be its actual name (at least for now), with the splash screen showing a cute little Greek warrior. As for what type of game it is, that we don't know; the original reports said it was a "ground-breaking strategy game", though from the load-up sequence terminology - which has quests, units and crafting - we could guess it's got some RPG elements to it as well.