raphael.planarity is a plugin for Raphaël that implements Planarity, a line-based puzzle game.

Treksit is described as 'Interstellar voyage to improve your logic skills, a browser-based game of graph theory to push your logic beyond the limits' and is a Puzzle Game in the games category. There are 2 games similar to Treksit for Web-based and Self-Hosted. The best Treksit alternative is raphael.planarity, which is both free and Open Source.
raphael.planarity is a plugin for Raphaël that implements Planarity, a line-based puzzle game.

Tronix is a simple game of logic where you manipulate dots so there are no lines intersecting between them.


