A few survivors have been left stranded on the isle Juan Ansidad, after a terrible storm crushed the Esperanza and numerous people were lost at sea. Those who survived seem to realise that no one is coming to their rescue and that they themselves will determine their fate. They build a raft and set out on an adventure to the Pacific in search of their salvation. The four survivors wrote down every part of their adventure in a logbook. You have come across this logbook and read their story; it lasted 21 days.
21 Days is a cooperative game for 1 to 4 players, in which you relive everything that has been written in the logbook, and your goal is to get at least one of the survivors rescued on the 21st day of their adventure. In order to do that, you must keep track of the logbook and have the survivors choose and perform actions on the various locations of the board. The number of players determines the way in which you are going to play.
Each of the four survivors is represented by two stacked dice. They use their placement dice on the available locations and roll them to activate the locations. Bear in mind that the raft was made of planks which have been stuck together, but for how long will they stay put? It is up to you to prevent the raft from falling to pieces. The survivors must be still on the raft when the rescueship reaches the final spot on the rescuetrack, that is when the 21st day has come. Will you make it till then?