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Rondoku

Fill elegant diagrams with the correct numbers using three simple rules. Rondoku invites you to think, take your time, and enjoy beautifully hand-crafted challenges.

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Release Date:

Oct 23, 2025

Developer:

Lucas Demo

Publisher:

Lucas Demo

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Languages:

	Interface	Full Audio	Subtitles
English	✔
French	✔
German	✔
Japanese	✔
Korean	✔
Portuguese - Brazil	✔
Russian	✔
Simplified Chinese	✔
Spanish - Latin America	✔
Traditional Chinese	✔
Turkish	✔

See all 11 supported languages

Includes 12 Steam Achievements

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all 12

Title: Rondoku
Genre: Casual, Indie, Strategy

Developer: Lucas Demo

Publisher: Lucas Demo

Release Date: Oct 23, 2025

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About This Game

Simple Rules, Deep Logic

Fill circular puzzles with the correct numbers using just three simple rules. Rondoku is a calm and minimalist logic game that invites you to slow down, think carefully, and find satisfaction in clever solutions.

70 Hand-Crafted Challenges

Every puzzle in Rondoku is designed by hand. With 70 unique levels, the game offers a thoughtful difficulty curve and a sense of intention in every diagram.

A Puzzle Book

Inspired by classic puzzle magazines, Rondoku is presented as a book. Flip through its pages freely and enjoy the quiet satisfaction of solving each puzzle, one by one, until the book is complete.