So apparently, From Dust is playable right now from Capsule, Green Man Gaming's game client. I haven't activated my key yet, so I want to trade it for something of equal value that's activatable on Steam, like Space Pirates and Zombies, Renegade Ops, or something of that nature. I've already bought From Dust and Bastion on Steam. If you're at all interested, please let me know. Again, you get to play it a night before it's released on Steam!