Draw a track, press Space, watch the sledder ride it. Every stroke is drawn on the sketch plane (the grid) and becomes a ribbon. On a wall plane it works like 2D Line Rider seen from the side: draw left → right for a floor, right → left for a ceiling (the pale side is the riding side, the dark side lets the rider through). Turn the plane between strokes, or hold A/D while drawing to steer the track around corners. A floor plane draws top-down and runs downhill at the set grade; with Bank on, turns tilt for the speed the rider should have there.
| Q W E R T | pencil, line, eraser, start flag, look around |
| 1 2 3 | normal, accelerate, scenery line |
| Shift while drawing | flip the riding side |
| start on a line end | snaps to it and moves the plane there (Alt to not snap). A line tool end on another line end bridges them anywhere in 3D |
| A D | turn the plane 15° (hold while drawing to steer) |
| Shift+wheel, PgUp/PgDn | push the plane away / pull it closer (floor: up / down) |
| Tab V B | wall / floor plane, face plane to camera, banking |
| G | 2.5D side view (default: looks at the sketch plane like 2D Line Rider, with depth; swings around corners while riding) or free 3D |
| right-drag, middle-drag, wheel | pan (2.5D) or orbit (3D), pan, zoom (two fingers on touch) |
| Space Esc C | play / pause, stop, camera mode |
| F | turn the start flag around |
| Ctrl+Z / Ctrl+Shift+Z | undo / redo |
The track saves itself in this browser. Hard landings and hitting ceilings throw the rider off the sled.