
黒くないカギで開かないドアはない
A world constructed with sentences. 2D action puzzle game where you get keys, open doors and clear stages by rewriting sentences and altering rules by adding and subtracting the word ‘Nai(no/non/not)’.
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About 黒くないカギで開かないドアはない
No, Non, Not!
'No door can Not be opened with a Non-black key' is a rule-modifying 2D action puzzle game in which the protagonist, who has the power to manipulate the word ‘Nai(no/non/not)’, adventures through a world created by rule sentences.
Summoned by a goddess, the protagonist is given the ability to manipulate negation and must solve a number of stages in order to rescue the princess.

The protagonist can use the given ability to retrieve the negative word ‘Nai’ from a rule statement and then add it to other rule statements.


Contents (Demo version)
8 stages + α
3 endings in total
Game details
Game details
Age ratings
Game modes
Languages
Features
黒くないカギで開かないドアはない — frequently asked questions
When does 黒くないカギで開かないドアはない release?
Steam lists 黒くないカギで開かないドアはない as coming soon without a confirmed date yet.
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System requirements
Minimum
- OS: Windows10+
- Memory: 1 GB RAM
- Storage: 200 MB available space
Recommended
- OS: Windows10+












