- Alley Demon
- Aztec Rave Monkey
- Barracks Settlement
- Batsu
- Bed Room(name)
- Beds
- Big Red
- Block World
- Bloody Touching Monster
- Bloody Touching Monster(name)
- Body Parts
- Brain Creature
- Buyo Buyo
- Candle World
- Candle World(name)
- Closet Creature
- Closet Madotsuki
- Cube Guru
- Dark World
- Dave Spector
- Dave Spector(name)
- Debug Room
- Dekishi-san
- Dense Woods
- Dropfish
- Dwarf
- E-Man
- Effects
- Effects (name)
- Events
- Eye People
- Eyeball World
- Eyeball World(name)
- FACE
- FACE(name)
- FC Demon
- FC Dungeon
- FC House
- FC World(name)
- FC World A
- FC World B
- FC World C
- Face Carpet Plaza
- Falling Men
- Fleebie
- Floyag
- Follony
- Forest World
- Frog
- Frog Characters
- Ghost World
- Ghostmen
- Goblins
- Goppa
- Graffiti World
- Graffiti World(name)
- Guillotine
- Guillotine World
- Hell
- Hell(name)
- Henkei Shita
- Indigenous Imagery
- Isee
- Ittan-momen
- Jellyfish
- KALIMBA
- KIKIYAMA
- Kamakurako
- Kimajo
- Kinoko-san
- Kisu-Tenmetsu
- KyuuKyuu-kun
- KyuuKyuu-kun(name)
- Lamp World
- Lamp World(name)
- List of Characters
- List of Locations
- Lizardman
- Madotsuki
- Madotsuki's Ghost
- Madotsuki's Room
- Madotsuki's Room(name)
- Madotsuki(name)
- Mafurako
- Mall Shoppers
- Mars
- Mars(name)
- Mars-san
- Maussan Bros
- Medamaude
- Merutomaro
- Mini Hell
- Mizume
- Monochrome
- Monoe
- Monoe(name)
- Monoko
- Mouth Monsters
- Mural World
- Mural World(name)
- NASU
- NASU(name)
- Nekoin
- Nenrikido
- Neon Creatures
- Neon Creatures(name)
- Neon Parrot
- Neon Statues
- Neon World
- Neon World(name)
- Nopperabou Ghost
- Nopperabou Witches
- Number World
- Number World(name)
- O-Man
- Official Goods and Media
- Official Manga
- Old Versions
- Onsen-san
- Organoid
- Pain Blob
- Pier Monsters
- Pirori
- Pissipissini
- Poniko
- Project Yume Nikki
- Puddle World
- Restroom
- Restroom(name)
- Roary Straw
- Sea Snake
- Seahorse
- Seccom Masada-sensei
- Severed Blue Head
- Severed Head PK
- Severed Heads
- Shield-Folk
- Shield-Folk World
- Shield-Folk World(name)
- Shitai-san
- Sky Garden
- Snow World
- Snow World(name)
- Soundtrack
- Stabbing Room
- Static Maze
- Steve 'Leif' Kareha
- Strober
- Submarine Fish
- Takofuusen
- Tasei's Kid
- Teleport Maze
- The Barracks Settlement(name)
- The Black Cat
- The Checkered Tile Path
- The Dense Woods(name)
- The Docks
- The Docks(name)
- The Ending
- The Fisherman
- The Footprint Path
- The KALIMBA TV Channel(name)
- The Mall
- The Mall(name)
- The Neon Tile Path
- The Neon Tile Path(name)
- The Nexus
- The Pink Sea
- The Pink Sea(name)
- The Sewers
- The Sewers(name)
- The Sky Garden(name)
- The Spaceship
- The Stabbing Room(name)
- The Staircase of Hands
- The Thing with the Quivering Jaw
- The Thing with the Quivering Jaw(name)
- The Wilderness
- The Wilderness(name)
- Theories
- Tokuto-kun
- Toriningen
- Train Passengers
- Traincar
- UFO
- Uboa
- Underground World
- Underground World(name)
- Unused Content
- Vending Machine
- Walking Candles
- Walking Eye
- Walking Lamp
- Warpo and Loople
- Wheelies
- White Desert
- White Desert(name)
- White Desert Underground Area(name)
- Windmill World
- Windmill World(name)
- Witch's Island
- Witch's Island(name)
- Wrapi
- YUMENIKKI –DREAM DIARY–
- Yuki-onna
- Yume Nikki
- Yume Nikki(name)
- Yume Nikki: I Am Not in Your Dream
- Yume Nikki Wiki
- Zippertile
- ☆24EFFECTS☆ (Album)
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