A cool looking steampunk airship combat online game! What more could you want. Built using the Unity3D engine (I knew I should have kept learning that) Looks to be pretty interesting. Take a look at the article over at Unity here.
Or you can buy the game for only $4.99 from Muse Games website here.

Guns of Icarus Online is a team-based multiplayer online airship combat game set in a steampunk/dieselpunk-inspired, post-apocalyptic world where lighter-than-air flight is the only means to cross the scarred wilderness that divides scattered pockets of civilization. Captain or serve as crew aboard an airship with your friends and fly into battle to win wealth and glory. With a good ship and the right crew, you can dominate the skies!

On an airship, everyone has a job to do, and the whole crew must work together to take down enemies and keep the ship flying. With three different roles to play, there’s something to suit every play style. Maximize your firepower and deal punishing damage as the Gunner, work fast under pressure and keep the ship together as the Engineer, or execute cunning aeronaval strategies and lead your crew to victory as Captain.