About
A relaxing logic puzzle game where you place gems on a board, ensuring one per row, column, and color region without any touching. Offers daily challenges and leaderboards for a competitive yet calm experience.
What's New in Gemdoku
1.0.1
September 10, 2026
Faster, smoother, and a few small fixes. Keep those streaks going!
Developer apps
FAQ
What is Gemdoku?
Gemdoku is a logic puzzle game where players place gems on a board, adhering to rules about rows, columns, and color regions. It emphasizes pure deduction to solve each level.
How do you play Gemdoku?
You tap tiles to mark 'X', swipe to mark multiple, and double-tap to place a gem. The goal is to place exactly one gem in every row, column, and color region without any gems touching, even diagonally.
Does Gemdoku have ads?
Yes, Gemdoku contains advertisements. It is a free-to-play game supported by ads.
Is Gemdoku suitable for all ages?
Gemdoku is rated for ages 4 and up, making it suitable for a wide range of players. The puzzles are designed to be challenging yet accessible.
Can I play Gemdoku offline?
The description does not specify offline play capabilities. However, features like daily challenges and leaderboards may require an internet connection.
How often is Gemdoku updated?
Gemdoku was last updated on September 10, 2026, with version 1.0.1. Further update frequency is not detailed, but it is actively maintained.
What devices support Gemdoku?
Gemdoku is currently supported on iPhones and iPods. Compatibility with other devices like iPads or Android phones is not mentioned.
What makes Gemdoku unique?
Gemdoku offers a fresh take on puzzles like Queens and Star Battle, specifically designed for one-handed play. It guarantees a single solution per level reachable through pure deduction, eliminating guesswork.





