Cubeline: 3D Cube Puzzle

■ About Cubeline Connect the cubes. Guide the ball. Drill holes through a cube to build a path for the ball. Starting with simple rules, the challenge grows to expert 6×6 stages requiring 14–28 moves — 310 puzzles in total. Build 3D pathways in your head. A pure spatial reasoning experience. ■ Features - 4 difficulty levels, 310 puzzles Beginner 3×3 (10 puzzles, 2–3 moves) Intermediate 4×4 (100 puzzles, 5–10 moves) Advanced 5×5 (100 puzzles, 10–18 moves) Expert 6×6 (100 puzzles, 14–28 moves) Train your spatial skills step by step. - Press Play to test your answer Place the holes, press Play, and watch the ball roll. If it reaches the goal, you clear the stage. A satisfying rhythm of thinking and checking. - X-ray view Stuck? Use the X-ray feature to see inside the cube. Play without hints for a harder challenge, or use X-ray to solve efficiently — your choice. - Simple controls Rotate the cube with one finger, tap to place holes. Intuitive enough to play without a tutorial. - Works offline Play anywhere — on the train, on a break, no internet needed. (Internet is only required for ads.) ■ Recommended for - Anyone who enjoys brain teasers in their spare time - Students and professionals training spatial reasoning - Players who prefer quiet thinking over flashy effects - People looking for short, one-stage-at-a-time sessions - Anyone in architecture, design, or game dev who wants to sharpen 3D thinking ■ How to play 1. Tap the cube to set the direction of a hole 2. Press the Play button 3. The ball rolls from the start, passing through the holes 4. Reach the goal to clear the stage Use the X-ray button if you get stuck. Reset the stage anytime. ■ About ads This app is free, supported by ads: - Rewarded ads (optional) when using X-ray - Interstitial ads after clearing a stage Ads are designed to appear only at moments that don't interrupt your play. ■ Privacy No sign-up required. We don't collect personally identifiable information. Only the data needed for ad delivery is handled via Google AdMob. See our privacy policy for details. ■ Contact Feedback, requests, and bug reports: [email protected] We read every message and use it to improve future updates. Don't just look at the cube — build inside it. Connect the cubes, and guide the ball home.