Gemdoku: Wood Block Puzzle

### **1. Description**

**Gemdoku** is a hybrid puzzle game that blends the spatial logic of **Wood Block puzzles** with the 9x9 grid mechanics of **Sudoku**. Unlike standard block games where you only clear horizontal or vertical lines, Gemdoku introduces a third way to score: filling the 3x3 sub-grids common in Sudoku. It features a "Zen" aesthetic with wooden textures and colorful gemstone accents, designed for mental relaxation and IQ testing.

### **2. Key Features**

* **Triple-Clear Mechanics:** Clear blocks via rows, columns, or 3x3 Sudoku squares.

* **Journey Mode:** A level-based progression system with increasing difficulty and unique trophies.

* **Combo & Streak System:** Earn massive points by clearing multiple lines/squares in one move (Combo) or clearing blocks on consecutive turns (Streak).

* **Satisfying ASMR:** Features high-quality wood-clinking sound effects and smooth visual haptics.

* **Daily Challenges:** Offers unique puzzles every day to keep the gameplay fresh.

* **Offline Functionality:** Fully playable without an internet connection.

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### **3. How to Play**

1.  **Drag and Drop:** You are given three random block shapes at a time at the bottom of the screen. Drag them onto the 9x9 grid.

2.  **Fill to Clear:** Place blocks to fill a **row of 9**, a **column of 9**, or a **3x3 square**.

3.  **Manage Space:** Once a line or square is filled, those blocks vanish, freeing up space.

4.  **Game Over:** If you cannot fit any of your three available blocks into the remaining spaces on the board, the game ends.

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### **4. How to Win: Strategy & Tips**

* **Don't Get Greedy:** Beginner players often try to build up massive boards for a "perfect" clear. It is safer to clear a line or square as soon as possible to keep the board open.

* **The 3x3 Priority:** Always look for the 3x3 squares first. They are often easier to complete than full 9-block lines and are essential for "patching" the center of the board.

* **Leave Room for the "Big Square":** Always assume the game will give you a 3x3 solid block next. If you don't have a 3x3 empty space somewhere on your board, you are at high risk of losing.

* **Visualize All Three:** Look at all three blocks in your queue before placing the first one. Plan a sequence where the first move creates space for the second and third.

* **Edge Management:** Avoid placing small single blocks in the very corners or edges unless they complete a line. These "orphaned" blocks often make it impossible to fit larger L-shaped or T-shaped pieces later.

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### **5. Technical Details**

* **Developer:** Unico Studio (famous for the *Brain Test* franchise).

* **Category:** Puzzle / Casual / Abstract.

* **Monetization:** Free-to-play with ads. Includes In-App Purchases for ad removal and coins. It is frequently featured in **Google Play Pass**, allowing for an ad-free experience.

* **Storage:** Relatively small footprint (approx. 60–90 MB).

* **Performance:** Optimized for "Zen" play with low battery drain; supports PC play via Google Play Games for Windows (requires 8GB RAM / SSD).

* **Content Update:** Regularly updated (latest version as of February 2026) with new levels in Journey Mode.