黒くないカギで開かないドアはない — Steam game overview

Stored observation / content update: 2026-10-25T04:00:06.000Z

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)’.

Upcoming game. Player and sales observations may not yet exist.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.