The Hunger Games

and the participants too) but I think there is still a difference when even, say, 2 players simply maintain neutrality towards each other, and when 2 players deliberately try to destroy a third :) there are quite a few aspects that need to be specified in the rules, some people may just want to play without joining any alliances or teaming up with anyone, while others may agree with a fairly strong player before the tournament starts to play as a team)
they might agree, for example, that Gomunguls and Maretti will play as a team and will win round after round against the others :)