Yume Nikki is just so surreal, so influential for its own genre and just such an interesting experience. You do not have dialogue or a structured story in this game, you just experience the surreal creations of a young girls mind. The only structure this game has comes from the interpretation of the player and the fact that there is actually something like a goal and an ending in this game. But you mostly just explore. There are comfy places, close to reality but there is also the exact opposite. And both add to the overall atmosphere that no other game really comes close to, to this day (except for fan games like Yume 2kki). No wonder the fandom is (or was) so passionate about this game-or should I just say experience?

Remember guys, playing Yume Nikki online at 3AM while rotting in your room is called self-refinement

Walking