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 each stage, the player can use melee and combination attacks. The game progression in terms of what stages are unlocked is defined by the player who is furthest along, although some levels require all players to have unlocked them before proceeding to them 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. Castle Crashers supports cooperative gameplay for up to four players, either locally or online.

Arena stages can be unlocked where the player character can take on challenges to unlock additional characters such as the villager. The map also displays shops where the player character can buy items and weapons using coins gained from defeated foes, bosses, and chests. After completing a stage, the player has the choice to revisit it or to move to another stage. After selecting a character, the player then selects a starting stage through an overworld map. GameplayД¬astle Crashers is a side-scrolling hack-and-slash that incorporates a small number of role-playing video game elements. Improved overall performance universally, resulting in less bugs and crashes. This includes 5x increase in texture sizes, uncapped framerate (60 FPS), various performance updates and improvements to gameplay and online multiplayer, as well as a new minigame called Back Off Barbarian. Your mission as the Knights is to travel across the land to retrieve the princesses, the crystal, and stop the Evil Wizard from destroying the land.

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