Over thirty years ago the Atari 2600 released a game that was one of the first four-player co-op titles to be put out for a home console: Warlords. In it you and your friends had to protect your forts from one another via a movable shield while a Pong-like ball flew towards your area. Now in 2012 Atari has remade the game for the PSN and Xbox Live Arcade, having it take place in medieval times and adding a few extras to the gameplay.
The main name of the game remains the same: protect your fort from barreling objects, while at the same time eliminate your opponent's domain. Instead of regular balls we find the main hazard being one made of fire and shot out from the throat of a dragon. As the game goes on you can earn special power-ups (such as slowing or reversing shields and making your fort invincible for a short period of time) that can make things more difficult for the other players. In order to collect said power-ups you will need to use your special minions to stand on the power-up circle long enough to grab them, although the other players can make things more difficult by having your minions attack yours at the same time.