Deserted Island. Mix between the TV show Survivor and the movie Hunger Games.
I was selected to be on a team that was stranded on a deserted island. There were computer generated obsticals we had to over come. The wave sizes were controlled by a computer system so there would be really calm waters one moment and huge crashing waves the next. We would come upon these random mansions that were uncovered in the jungle. Sometimes a selected victim would be removed and held on a ground square just off shore. They had to survive with whatever floated by them. They are close enough to the island to be able to see everything that is going on with their team on the island. Sometimes the computer gives us gifts, like a welder, or a karaoke machine.