Choose a piece under 線路・道具 (Tracks/Tools), click a tile to place it, align it with 回転 (Rotate), then press 発車 (Depart). If multiple trains appear, check each destination and the switches and signals before dispatching.
Where to play and what counts as progress
Play free on unityroom. Released October 26, 2026, this 3D railway puzzle has 20 stages. The aim is to deliver trains to their assigned stations. Desktop and mobile browsers are supported, although the developer recommends a PC. Japanese and English interfaces are available.
Your first departure
- Identify the starting station and destination. Work out which points need connecting.
- Open 線路・道具 and choose a straight, curved or other needed track piece.
- Click or tap a tile to place it. Use 回転 to point the track ends toward adjacent pieces.
- Follow the complete route visually. Pay special attention to both ends of every curve.
- Press 発車 to run the train. Use ヒント (Hint) when stuck and カメラ (Camera) when raised track blocks your view.
| Problem | Check first |
|---|---|
| Train misses the station | A gap anywhere along the route |
| Curve doesn't connect | The curve's rotation |
| Several trains go different ways | Destinations, switches and signals |
Later levels and unusual tiles
Later puzzles add multiple trains, switches, signals, bridges and tunnels, with up to three train sets and nine cars. Trace each train's start → switches → destination separately before adjusting signals. Rhombus and Penrose tilings also appear. Look at the real edges of these tiles rather than assuming a square grid. These are problem-solving suggestions inferred from the official rules, not verified level solutions.
FAQ and takeaway
Are all 20 solutions shown? The stage count and controls are confirmed. Exact layouts, signal sequences, failure rules and the final scene have not been checked through a complete playthrough. Can I build freely? Yes: Free Build and a mode for viewing the finished railway are included. Takeaway: find stations → place tracks → rotate → check the route → depart. With several trains, examine one route at a time.
Sources: official game and controls, developer's game list, checked October 27, 2026 JST. Route-checking is advice, not a tested perfect solution.
