Yume Nikki is a 32-Bit freeware game created by Kikiyama, a Japanese solo game designer. The game was made using RPGMaker 2003. The game is regarded as one of the most original applications of RPGMaker 2003, and the start of a possible new genre of games.
The game follows a young girl named Madotsuki as she dreams. The player can control where she goes and how she interacts. The goal is to acquire 24 effects.
The game otherwise has no plot, and nearly the entire game is left up to fan speculation.