Line Rider Online: Draw Custom Tracks in this Physics Sandbox Game

Line Rider is a physics simulation sandbox game where players draw custom tracks to guide a sled-riding character named Bosh through original obstacle courses. It turns a blank digital canvas into an interactive test of gravity and friction.

Let’s look at the tools you actually use to make the sled move. You only have a few line types to work with, but they define the entire experience. Blue lines act as your standard rideable surface for the sled to coast down. If you need Bosh to clear a massive gap, orange lines provide an instant speed boost to launch the sled forward. And if you want to make the environment look a bit less empty, green lines let you draw background scenery without affecting the physics at all. It sounds simple. It is. But figuring out exactly how to combine these different paths to keep the rider from wiping out takes real trial and error.

Drawing the path is only half the battle. Once you sketch out a slope or a jump, hitting the play button lets gravity take over. You get to watch the sled react to every tiny bump and curve you placed on the screen. Sharp angles usually end in an immediate crash, sending Bosh tumbling away. Smooth transitions keep the momentum going.

This is where the undo button becomes your best friend. A single misdrawn curve can ruin a fast run, so zooming in to fix a landing angle is just part of the process. The physics engine is surprisingly strict. You really have to respect how weight and momentum work here to keep the sled upright. Some players spend hours adjusting a single jump to get the perfect landing—eventually chaining enough of these stunts together to build massive, complex courses.

Game Controls

• Left Click + Drag: Draw your selected line type
• Right Click + Drag: Move the camera view around the canvas
• Mouse Wheel: Zoom in and out
• S: Toggle between drawing and viewing modes
• Spacebar: Play or pause the sled simulation
• Ctrl + Z: Undo your last drawn line
• Q / W / E: Quickly switch between drawing tools

As always, remember to have fun!

How to Play:

Export your save code to your computer and import it, or share your save code with your friends so they can play the track you created.