From a little doodle to a very big drop.Sketch your track. We’ll take care of the third dimension.
Draw high for hills. Draw low for dips.
Each coach has two rows and four seats. Configure your train before launch.
Choose a propulsion package. Thrust changes actual train speed.
1. Sketch. Drag to draw. Small hand tremors are automatically straightened into clean segments. Deliberate bends and hills stay in place. Every new stroke extends your track from its last point. Use Pan or hold Space to move the workspace, scroll to zoom, or use the + / − buttons. The workspace has no bounds; drawing past an edge automatically pans it.
2. Build. Your horizontal movement becomes forward distance; vertical movement becomes height. A spline rounds the corners. Crossings and backward strokes are allowed.
3. Ride. Choose your speed, train length (1–8 coaches), coach, row, and left or right seat. Drag or swipe the ride scene to rotate the view; Reset view returns to the default angle. You can move seats during the ride. Train length is set before launch. Choose your camera. In assisted mode, the slider sets launch speed and a powered minimum. The motor activates below that speed; descending sections can accelerate freely above it. In Realistic Physics mode, baseline assistance is off: the slider sets launch energy only, so hills can cause rollback. An installed engine still supplies thrust when you explicitly ignite it. Neither mode has a top-speed cap. Seat view hides your own coach and places your eyes above the seats to prevent obstructions. Train design studio changes the body style, paint, trim and optional adult riders. Performance lab fits a rocket, jet or turbo to the tail coach. Set throttle and tap Ignite (or press B) to fire it; tap again to cut thrust. Fuel is finite and resets each ride. Thrust adds work to the train energy, so more coaches accelerate more slowly. Train studio gives you a close view of your design and its azmir.uk system livery.
Physics model. A rigid-speed train follows an arc-length track, with gravity calculated from the average height of its coaches, with energy conserved between height changes and rolling resistance removing energy. Hills can cause rollback. This game uses a simplified wheel-retention envelope of −1.2 to +5.5 g; exceeding it causes a derailment. It is a game, not an engineering simulator.
All heights are relative to the lowest drawn track section. Your last sketch is saved in this browser.