Castle Crashers is a beat 'em up console video game independently developed by The Behemoth and published by Microsoft Game Studios. It features music created by members of Newgrounds. The Xbox 360 version was released on August 27, 2008 via Xbox Live Arcade as part of the Xbox Live Summer of Arcade. The PlayStation 3 version was released in North America on August 31, 2010 and November 3, 2010 in Europe via the PlayStation Network. The game is set in a fictional medieval universe in which a dark wizard steals a mystical gem and captures several princesses. Four knights are charged by the king to rescue the princesses, recover the jewel, and bring the wizard to justice.

Castle Crashers was well received by critics on both platforms. The Xbox 360 version holds a score of 82.73% at GameRankings and 82/100 atMetacritic, while the PlayStation 3 version averages 88.67% and 85/100 at the same sites. The game was a commercial success, and the Xbox 360 version has sold over two million copies alone as of year-end 2010. The PlayStation 3 version has also done well, moving over 181,000 units as of December 2010.

Castle Crashers is set in a fictional medieval universe. It begins with four knights attending a party in a king's castle. During the party a dark wizard arrives, stealing a floating mystical gem and capturing four princesses. The king sends the four knights to retrieve the gem, rescue his daughters, and bring the wizard to justice.] The four knights encounter several enemies along the way, including other knights, multiple encounters with a cyclops, a giant "cat-fish", and alien invaders. Visit this to get more info about video games .

As the knights progress they succeed in rescuing the princesses, and ultimately the journey culminates in a final showdown with the wizard. The knights emerge victorious from the confrontation, having defeated the dark wizard, rescuing all of the king's daughters, and recovering the mystical gem. The knights then ride the reclaimed gem through several empty battlefields on their trip back to the castle. At the castle the king brings one of his daughters for one of the knights to kiss, her face veiled. As the knight leans in for the kiss, the princess removes the veil, revealing that the princess is actually a clown.

Castle Crashers is a side-scrolling beat-em-up that incorporates a small number of role-playing game elements. After selecting a character, the player then selects a starting stage through an overworld map. After completing a stage, the player has the choice to revisit it or to move to another stage. The map also displays shops where the player character can buy items and weaponry using coins gained from defeated foes. Arena stages can be unlocked where the player character can take on challenges to unlock additional characters.

Castle Crashers supports cooperative gameplay for up to four players, either locally or online. The game progression in terms of what stages are unlocked is defined by the hosting player; however, each player character will gain experience points and acquire wealth, weapons, and animal orbs independently as they progress with the rest of the party. In each stage, the player can use melee and combination attacks. Each character has a unique magical ability in order to defeat foes and a health meter that, if drained from enemy attacks, will cause the character to fall in battle. In single player mode, this ends the stage; however, in cooperative multiplayer other players may attempt to revive the downed character