Iron Harvest

It's an alternate 1920+ and Europe is still reeling from the Great War, its war machines being found and repurposed by those seeking to claim land and seize control of a world not yet ready for another mass conflict.

Iron Harvest is a real-time strategy game packed with dieselpunk tech and mechs, with three different campaigns to play through and dominate. That's not all, though -- the campaign can be played in online co-op, and the game features laddered multiplayer and a host of skirmish maps to wipe your enemies clean off of. One thing's for certain: there's never been an RTS that looks quite like this one.