Far in the future after an old Empire was down people have came to the point that it is sensless to wage star wars. They realized that an old duel tradition is quite a good way of solving military conflicts. So they built the space arenas where star warriors can stand for the showdown... You are the one of these warriors, you fly the best ship ever built - the x-filter. The only task is to destroy all of your opponents. The arena is surrounded by a barier, crossing it bouces you back to the circle, and reduces your shield.