Welcome to the Moon uses the same flip-and-write game mechanisms as the earlier title Welcome To..., but now you can play in a campaign across eight adventure sheets. On a turn, you flip cards from three stacks to create three different combinations of a starship number and a corresponding action, then all players choose one of these three combinations. You use the number to fill a space in a zone on your adventure sheet in numerical order, and everyone is racing to be the first to complete common missions.