Line Rider 2: Unbound

Line Rider 2: Unbound lets players create their own track using a pencil tool. Players can create ramps, loops, hills, and checkpoints, and then send a sledder down the track.

Line Rider is an internet game. Versions are available for Microsoft Silverlight and for Flash. It was originally created by Boštjan Čadež (also known as "fsk"), a Slovenian student. Originally appearing on DeviantArt on September 23, 2006, Line Rider quickly became an internet phenomenon.