Mountain Puzzle
A downloadable game for Windows
Mountain Puzzle is a 3D puzzle game based on real elevation and lake-depth data. Move, rotate, and fit terrain pieces together, using ridges, valleys, and contour lines to identify where they belong. Display completed models in your exhibition room.
The base game includes 60 terrain models, featuring mountains, islands, lakebeds, and landscapes from the Moon and Mars. Each model is available in 25, 100, and 225 pieces, for a total of 180 puzzles.
Features
- 60 terrain models based on actual terrain data
- Three puzzle sizes for every model: 25, 100, and 225 pieces
- Individual landmarks and connected sections of larger mountain ranges
- An exhibition room for completed models
- A free-view mode for exploring completed terrain models
- Outdoor lighting with adjustable date, time, and time progression speed
- Optional place names, trails, rivers, water bodies, and building footprints in free-view mode, where available
- A guided tutorial using Aogashima
- Automatic progress saving, with save-data import and export
- Keyboard/mouse and gamepad controls, with adjustable sensitivity
- English and Japanese language options
Free Demo
Try Mount Fuji, Aogashima, and the Jungfrau area of the European Alps in all three puzzle sizes. The demo includes nine puzzles and the Aogashima tutorial.
Download the free Windows demo below, or try the browser demo using the link on this page.
Additional Content
The Southern Alps of Japan are available as a separate paid expansion, containing 12 connected terrain sections and 36 puzzles. This expansion is not included in the base game and requires the full version of Mountain Puzzle.
Platform
Full game and downloadable demo: Windows, 64-bit.
Browser demo: Desktop web browser.
Installation
Download and extract the entire ZIP file, then run MountainPuzzle.exe. Keep all extracted files and folders together.
Terrain Data
Terrain data has been processed and simplified for gameplay. Optional map details vary by location and data availability. The models are not intended for navigation or surveying. Data sources and third-party credits are included with the game.
| Published | 1 day ago |
| Status | Released |
| Platforms | Windows |
| Author | tsutsutsu441 |
| Genre | Puzzle |
| Tags | 3D, Casual, Controller, Cozy, nature, Relaxing, Singleplayer |
| Average session | About a half-hour |
| Languages | English, Japanese |
| Inputs | Keyboard, Mouse, Gamepad (any) |
| AI Disclosure | AI Assisted, Code |
Purchase
In order to download this game you must purchase it at or above the minimum price of $4 USD. You will get access to the following files:
Download demo
Development log
- Mountain Puzzle|日本語紹介・無料体験版1 day ago



