Biography
Yume 2kki (ゆめ2っき), released in 2007, is the fanmade "sequel" to the popular RPG Maker game Yume Nikki. In this game, you play as a girl named Urotsuki and explore her dreams. The game lacks any story or dialogue, so as a result the main goal is simply exploring and observing, making it much closer to an interactive audiovisual experience than a traditional game. That said, there are some optional collectibles such as effects, wallpapers, and kura puzzles, all unlocked by exploring more of the world. Yume 2kki is far larger than its prequel or any other fangame, as it is still being updated regularly to this day.
Biography text from Last.fm, available under CC BY-SA.