Kingdom Hearts 3D: Dream Drop Distance is an action role-playing video game and the seventh installment in the Kingdom Hearts series. The game takes place after the events of Kingdom Hearts Re:coded, and focuses on Sora and Riku's Mark of Mastery exam, in which they have to protect parallel worlds in preparation for the return of Master Xehanort. Besides controlling the two playable characters across a single scenario, the player is able to recruit creatures known as Dream Eaters to assist them in fights.