A free to play RTS/MOBA currently in alpha stage created by the people that brought you Command & Conquer, Supreme Commander and various other over-the-top militaristic RTS games. Supported
40+ players in a single match leading armies of mecha, tanks, assault gunships or one really fahking huge battleplatform in an all out slugfest. Well that was until Trion (the funding company) fired the developing company behind it and postponed the game indefinitely.
Until now where they just announced a brand new Alpha to revive the game.
Some links (note that some of these are quite old)
Some lore
Gameplay with Totalbiscuit
Register for Alpha here
End of Nations debacle
A personal note
I am whoring myself off this game of my own will because I devoted my entire last summer to it and it's about time it came back.