Tragedy strikes as your spaceship descends through the planet's atmosphere and crashes on its surface...You have become stranded. A decision must be made: build a self-sustaining colony or find a way to get a strange alien ship working again. In Stranded, you score victory points by constructing colony buildings and by investigating the alien ship. But, in addition to competing for access to best building and newly discovered technologies, you must negotiate how you will work together with other players to complete the colony or escape via the alien ship. Each turn players take a number of actions with their explorers cubes depending on the cards they play. These actions can include: Claiming a part of the colony, which requires a set number of explorers, or claiming an alien technology for which you use your explorer to 'outbid' other players. Colony buildings and ship technologies when claimed are added to your hand of cards, thus increasing your ability to take additional actions in future turns. Colony building and actions that repair the alien ship can be done collaboratively--and players can negotiate the completion of a specific building or the repair of a part of the ship to their advantage. The game ends when either the colony is completed or the ship is fully repaired. Since players are awarded extra points for correctly forecasting which outcome ends the game, ad hoc alliances are formed as players seek to steer the game to their chosen conclusion. —description from the designer