Kingdom Hearts 3D: Dream Drop Distance is the seventh game in the Kingdom Hearts series. It was originally developed for the Nintendo 3DS hand-held system. It is a direct sequel to Kingdom Hearts II, Kingdom Hearts coded, and the epilogue of Kingdom Hearts Birth by Sleep. Utilizing the 3DS's high-spec graphics processing, the game's graphics are near on-par with those of the PS2 titles, and make use of the system's 3D technology to add immersion when falling from high places and flying far distances. The 3D effect is used more for "going into the screen" rather than things popping out.

King Mickey and Yen Sid prepare for an impending threat by putting Sora and Riku through the Mark of Mastery exam. Sora and Riku are sent into the Sleeping Worlds, where they will face enemies and allies that have never been seen before. If they can successfully complete the task they are given, they will be deemed true Keyblade Masters.