"Brigands is a shared screen, competitive combat game featuring smoke-churning airships blasting each other with fiery cannonballs to control the iron and steel tradelines in the clouds.
The plan for the shipped version of the game is to include several locations with dynamic times of day/weather, multiple ship classes with unique attributes and weapon types, and hopefully a single player/co-op mode.
Download the first playable version of Brigands here" - Author's description
Download here (Windows)
Download here (Mac)