M∞N's Title screen
M∞N plays like most Yume Nikki fangames, focusing on exploration and collecting effects. M∞N is a bit different than most games, one of the few fangames allowing effects to be used in the real world and dream world.
Tsumiki is inside a spaceship and logically cannot exit. She saves at the bed, and enters a dream world by interacting with objects under her desk. To remove an effect, the player must pick up the doll that looks like Tsumiki, and select the Tsumiki (つみき) option from the effect menu.
M∞N, like that of ＊Illness＊, contains parodies and references to pop culture such as famous art, anime, movies and video games.
Tsumiki's room contains an effect, Tsumiki (つみき), named after herself, taking off any effects when equipped.
|Tsumiki wears a red, cat-eared Jack-o'-lantern over her head.|
|Tsumiki rides a flying carpet.|
|Tsumiki holds a pair of monkey wrenches as weapons, allowing her to kill NPCs.|
|Tsumiki turns into a viper, increasing her speed.|
|Tsumiki's hair becomes tall and pointed, allowing her to kill NPCs.|
|Tsumiki wears a yellow hardhat and holds a pickaxe, allowing her to kill NPCs.|
|Tsumiki turns into a Kamaitachi yōkai, increasing her speed and allowing her to kill NPCs.|
|Tsumiki has heterochromia (her right eye becomes yellow and her left eye becomes blue), short white hair and cat ears.|
|Clione / Sea Slug|
|Tsumiki turns into a blue Clione sea slug.|
|Tsumiki becomes a red Pikachu-like creature with a heart-shaped tail and ears, allowing her to permanently kill Pikachu NPCs.|
|Tsumiki wears the hockey mask of Jason Voorheeses and holds a pair of red hockey sticks.|
|Broom / Desk Brush|
|Tsumiki rides a floating broom.|
|Tsumiki's body resembles a clownfish, her hair hair becoming reddish pink in an odango style.|
|Tsumiki has yellow hair resembling a firefly's light, turning on and off as she walks.|
|Othello / Reversi|
|Tsumiki becomes Reversi-themed, having a black eye and a white eye, black hair and a monochrome checkered outfit.|
|Tsumiki wears a leopard costume.|
|Tsumiki's head is replaced with a red apple. Pressing Shift warps her back to the nexus.|
|Marimo / Spherical Moss|
|Tsumiki's hair and outfit are green, resembling Marimo (spherical moss).|
|Tsumiki turns into two small, identical versions of herself that walk in sync.|
|Tsumiki becomes pink and has rabbit ears.|
|M∞N · ＊Illness＊ · Lost † Game · Musou Yuugi (夢想遊戯) · Made In Nightmare|