Players start their space station (Orbital) with a core module tile on the table, then over five years (rounds) they expand it by paying and placing new module cards. Each year they each start with a five card hand, crew tokens, and new money, the amount of crew and money determined by the structure of their orbital. They use money primarily to pay for new modules, and the crew gives them special effects on many of their modules.

During the year, the players take turns doing actions such as building, using module actions, playing event cards, repairing or passing. When everyone passes, the year ends and victory points are awarded. At the end of the fifth year, the player with most victory points wins.

Ages 10+, 1-5 players, 60+ minutes