The Team Estimation Game is a method of backlog estimation where members of the team take turns to first sort the tickets by priority, and then assign specific storypoint value to ranges of tickets.
It puts emphasis on estimating the tickets in relation to each other rather than focusing at one item at a time (as is the case with Planning Poker).
The Team Estimation Game enabled us to reduce time spent on estimation sessions by more than a half, while keeping the estimations no less accurate than with Planning Poker.