The Survival Game is the Battle Royale tournament hosted by Deus Ex Machina in order to choose his successor as the God of Time and Space. Twelve individuals were selected as participants, although one candidate consists of two people (Marco Ikusaba and Ai Mikami). Deus initiates the game on April, 2006. Each of the candidates are given Future Diaries to use them to predict their futures. The last man standing will become Deus' successor. The others must be killed or their diaries must be destroyed to eliminate them from the tournament. Deus acts as the judge, with his assistant Muru Muru handing out the diaries and acting as his secondary judge. Three survival games have occurred, two in the manga and anime, and one in the drama Future Diary: Another World.