1. One player is the host, who invites the others. As host, you should invite people you know really well – and preferably who know each other really well. Apart from this, no GM is needed.
2. The larp begins with a timer or alarm clock set for four hours. It ends when the timer rings.
3. Before role-playing begins, each player should carefully examine their own life, looking back to the single biggest decision that has led them to where they are today. The player should imagine what would have happened had that decision been taken differently (for good or for bad), and if so: who would the player be today? That person is the character.
4. In-game, none of the characters know each other. They meet for the first time.
5. The host decides where and why the characters meet.
6. Plan at least two hours for debrief.