City of the Great Machine is a One-vs-Many and Cooperative strategy game set in the Victorian steampunk universe. The game features a conflict between an alliance of Heroes and the Great Machine, a single-player artificial intelligence network.

The Great Machine controls the City built on mobile sky platforms. As the Great Machine, one player (or game AI in the Solo & Coop mode) commands a force of engineered servants and mechanical guards. The Great Machine’s ultimate goal is to complete its grandiose Master Plan and perfect mankind.

All other players are Heroes working together against the Great Machine to start a revolution. Their goal is to prevent the Great Machine from completing its Master Plan,thus saving humanity from eternal enslavement.