Microsoft is seeking more alpha testers for what it describes as a "groundbreaking", "giant, revolutionary step for PC strategy games". Some of those alpha testers have forwarded details on the project Microsoft is referring to as "Project S" and "Spartan", a clue that this may be a title set in the Halo universe.
Among the questions being asked of potential alpha testers for Project S is whether they've played other PC strategy games, including StarCraft, Warcraft III, Age of Empires and Farmville.
The Project S alpha has been underway for the past few weeks, according to Microsoft's survey, and is planned to run for a month or two.
Project S could be something as simple as a Windows version of Ensemble Studios' Halo-themed RTS Halo Wars or a sequel to that game. Or it could be something unrelated to Halo's fiction, featuring actual Greek spartans.
[When Ensemble Studios was dissolved, they said they were keeping the majority of talent within the company under a new banner. Perhaps they've been working on this? -Au ed]