Epic Games is known for a lot of things, the Gears of War game franchise and development tool Unreal Engine prime among them. But old-school game fans might know Epic Games for another classic franchise: Unreal Tournament. The long-dormant series is making its return starting today! Sort of. Epic announced this afternoon that the next Unreal Tournament game begins development starting today with "a small team of UT veterans" focused on development for Windows, Mac and Linux. The entire development is open source, which Epic characterizes as, "a collaboration between Epic, UT fans and UE4 developers." As that line infers, the game's being created using Unreal Engine 4. Best of all? When the game's ready to play, it will be free. As Epic puts it: "Not free to play, just free."