Game Walkthrough Gallery
FOG's v0.0.51M title screen
Latest Version

0.0.52R (2016/10/07)
0.0.51M (2016/10/06)


Naylan (aka riki-xenon)




RPG Maker 2003 (Version R)
RPG Maker MV (Version M)

Release Date

October 30, 2015


Ynfg leon tegan emory Leon/Tegan/Emory

Nexus Doors

Leon - 12
Tegan - 12
Emory - 17


Leon - 4
Tegan - 2
Emory - 1




FOG (フォグ) is a Yume Nikki fangame being made by Naylan with RPG Maker 2003 and RPG Maker MV. It is the first game in the dreamFOG (ドリームフォグ) franchise. The current versions are v0.0.52R (RPG Maker 2003 version for Windows) and v0.0.51M (RPG Maker MV version for Windows and browsers), released on October 6, 2016.

Even though the author designed it as a traditional fangame, they have not just drawn inspiration from Yume Nikki, but other game franchises such as Phantasmagoria, BioShock, Hexen, and Five Nights at Freddy's, as well as the music of Depeche Mode, Cabaret Voltaire, and Genesis.


From the Nexus, the dreamer can explore several different dream worlds. Within the dream world, they can collect various effects and perks, which can be equipped to raise certain stats which may affect their dreams.

FOG has included various puzzles throughout the dream world since the first release. Those puzzles are generally based on various visual and audio cues; solving them may reveal Effects and Perks.

As an RPG Maker MV game, version M of FOG already supports gamepads, including the Xbox 360/Xbox One and PlayStation 3/PlayStation 4 controllers. Version R, which only supports three-button gamepads due to its nature as an RPG Maker 2003 game, came with improved gamepad support starting with an Antimicro configuration file in v0.0.51R, although it is already possible to wake up with the gamepad by using the Effects menu.

On April 1, 2017, the author announced that they would make the game easier in later versions by simplifying the maps, allowing the player to save anywhere in the dream world, and using a caution symbol (⚠️) to indicate to the player that an actual puzzle, as opposed to a red herring, is present.


The game takes place on November 1998, and it follows the lucid dreaming exploits of Leon, Tegan, and Emory, as they explore their shared but corrupted dream world after their friendship fell apart. They may find ghosts of each other, as well as recurring antagonists such as Fedoras and Shadow Creatures. Although FOG has no dialogue, Leon, Tegan, and Emory may find messages visually encoded as numbers, colors, or shapes or auditorily encoded as Morse code.

Leon and Tegan share the same 12-door staircase Nexus, although they cannot enter each other's bedrooms. Emory's Nexus, however, is a three-tier chamber with 17 doors, out of a planned 32.



Name Image Description
Ynfg leon photon

"Become a Light Creature."

Leon moves faster.

Bug Spray
Ynfg leon spray

"Carry a bug sprayer."

Leon can kill certain creatures and break certain blocks.

Ynfg leon flashlight

"Carry a flashlight."

Leon can illuminate certain areas and ward off Shadow Creatures by turning it on with the Shift key. However, it has limited battery power, which can be recharged when it is turned off.

At Sign
Ynfg leon atsign

"Become an at sign ('@')."


Name Image Description
Ynfg tegan alt

"Go barefoot and change for the summer."

Tegan moves faster.

Ynfg tegan onion

"Become an onion knight."

Tegan can kill certain creatures and break certain blocks.


Name Image Description
Ynfg emory mouse

"Change into mouse pajamas."

Emory moves faster.

Tegan's TraverseEdit

On March 17, 2016, Naylan released a condensed mini-game made with RPG Maker MV, Tegan's Traverse, which allows the player to walk through the 12 main worlds with any of the three Dreamers: Tegan, Leon, and Emory.

Dream OriginsEdit

On April 30, 2017, Naylan released a selection of assets from FOG in a set of free materials called Dream Origins, made for others to use and edit for their own games for the Dream Diary Jam on Tumblr but can be used for any purpose under either the Creative Commons Attribution 4.0 International License or the MIT License.

Download / External LinksEdit

Version REdit

Version Date Download Note
Ver.0.0.52R October 7, 2016 Download
  • Emory can now toggle the Mouse Effect. (This is already possible in v0.0.51M)
  • The last Shadow Creature in the Dark World labyrinth will chase the Dreamer if they return to its original sector.
Ver.0.0.41R June 27, 2016 Download
  • Emory added as a playable character with 1 Effect available for them
  • Jumpscares have been softened so not to startle the player
  • Enhanced gamepad support with Antimicro configuration file
Ver.0.0.40R April 16, 2016 Download
  • Tegan added as a playable character with 2 Effects available for her
Ver.0.0.31R January 19, 2016 Download
  • Minor updates, including the ability to save anywhere in dream with the Laptop Perk equipped
Ver.0.0.3 December 1, 2015 Download
  • 4 effects, 6 perks, no ending

Version MEdit

Version Date Download Note
Ver.0.0.51M October 6, 2016 Download
  • Emory added as a playable character in version M with 1 Effect available for them
  • Enhanced UI and gamepad support in version M
Ver.0.0.40M April 16, 2016
  • MV port (version M) is now available, featuring mouse support and 720p HD display. Gameplay may be slightly different due to differences between RM2k3 and RMMV.

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