How about a new gamemode, you know that show Total Drama? On the first season there were 22 contestants, here's how it works, the people get split into 2 teams of 11, than, they do challenges, the team that loses the challenge gets eliminated, than, once there is 10 people, the teams split up, and then there's only 1 winner for each challenge, that winner gets immunity, and the others must vote (the person with immunity votes too) and once they get too the final 2, they do one final challenge, and the winner, is, well, THE WINNER! I hope you enjoy the idea. :D and I almost forgot, the person with the most votes gets eliminated and becomes a spectator, but when typing in chat, only other spectators see it.
