# Noctdoku: Calm Logic — Sudoku without numbers

> Sudoku without numbers (iPhone/iPad app by EMILIO CISNEROS.)

- Source: https://appshunter.io/ios/app/noctdoku-calm-logic/id6817097010 (this page in markdown: same URL + `.md`)
- Developer: [EMILIO CISNEROS](https://appshunter.io/developer/1674414596)
- Category: Games, Puzzle
- Price: Free
- Age rating: 9+
- Requires: iOS 17 · 77 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, European Spanish
- Released: 2026-10-06
- Data updated: 2026-10-08

## What is Noctdoku?

Noctdoku is a relaxing logic game that gives your mind something satisfying to solve. Find one creature in every colored region while keeping the whole grid in balance.

Use row and column deduction like Sudoku, then rule out impossible squares like Minesweeper—without numbers or mines. Each board needs exactly one creature per color, row and column. Creatures cannot touch, even diagonally.

Tap once to mark an impossible square with an X, drag to mark several, and double-tap to place a creature. A playable tutorial teaches the rules as you go.

• Fresh, generated logic levels to play at your own pace.
• A new 11 × 11 daily challenge and a weekly calendar of completed challenges.
• Switch between the Solar Flame and Lunar Drop whenever you like.
• Soothing music, rain ambience and gentle effects, each with its own control.
• Play offline, with no ads and no in-app purchases.

Take a short break or settle in for a longer session. Every solved grid brings a quiet moment of satisfaction.


## Version history (last 1 release)

### 1.0 — 2026-10-06

No release notes.

## More apps by EMILIO CISNEROS

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- [Horror Merge: Monster Game](https://appshunter.io/ios/app/horror-merge-monster-game/id6804288379)

All apps by EMILIO CISNEROS: https://appshunter.io/developer/1674414596

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-08.*