From the campaign:
In Mars Needs Mechanics, players represent elite steam engineers competing for the prestigious appointment of Royal Astronautical Engineer aboard mankind's first rocket to Mars.
Starting the game with only 30 cogs (currency), players will utilize unique game mechanisms that emphasize timing to collect sets of components and build incredible mechanisms aimed at earning even more cogs. At the end of the competition, the engineer with the most cogs will earn their place as Astronautical Engineer on the crew of the H.M.S. Victoria VII