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About this mod


AMBIEN is a mod largely focused on Blackspace 2. It has over 70 unique maps and two endings.
To get to the first ending, the player must collect 13 keys.
There's several ways to get hints, for example an in-game item and Mari herself.

To start, one must be on an alternate (Hikikomori) route save file that is at the end of the normal game, then sleep until day and walk to the closet room. Don't worry, I have included a save file for those that don't have one. It's in the EXTRAS folder inside of the mod folder.

I especially recommend to look around on the wiki because I re-used many cut warps.
Visit the Corrupted Junkyard first if you don’t know where to begin.

Listen to the OST here!


This mod is not compatible with any major content mods (BS+, Cecily Space, Reverie... etc). Particularly mods that add extra maps will conflict with AMBIEN. However, these mods have extra interactions with AMBIEN:

If you run Girlmori with AMBIEN, you'll see that female pronouns are used.
If you use Mod Configs, you'll find a config option that will allow the mod to use your OS name in an ending. Said option is disabled by default.
If you use Badges, modded achievements for AMBIEN will appear.


Special thanks to:

To OMOCAT and their team for creating OMORI.

To rph that somehow made a modloader that is as good as it is, and for helping with general things.

To Watermelon Man for making the walkthrough.

To K8, Arbea, Ami, MillieAmp, Huultah, Unfunny and Lee for playtesting the update!

To Ami (again) for making a certain item sprite!

To MillieAmp (again) for providing some music for the new areas!

To the many people that downloaded my mod and to everyone who sent bug reports or suggestions!


Please contact me (pyro_3607 on discord or join AMBIEN’s discord server if you find any bugs or if the hints to a key are too vague. If you have any suggestions, please shoot them my way! If they’re good enough, I may include them in a future update.


This mod may change things that may break any other part other than Black Space, make sure to back your save up if you hold it dear.

Mod owner

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Profile picture of Pyro Pyro


Licensing information

Like all game mods, this mod contains both original work and a limited number of original game assets. Original game assets are provided for the sake of game compatibility only, and you must own the game on Steam to use this content. By downloading any file from this website you confirm that you have purchased a legal copy of the game and that you will not knowingly re-distribute game content. Additionally, any original content of this mod is licensed under the following terms:

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

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