黒くないカギで開かないドアはない

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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)’.

Developer: Studio ZeF
Publisher: Marvelous Inc.
Released: Coming soon
Price: Paid
Platforms
Languages: Japanese

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Players on Steam, last 48 hours

Updates News

No player readings for 黒くないカギで開かないドアはない in the last 48 hours yet. We poll this game every 30 days.

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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