String Theory is a colorful puzzle game about matching a given pattern by building it out of different colored shapes.

String theory has 60+ handcrafted puzzles, daily challenges, and free play modes, making for hours of fun.


Draw lines between pegs to create loops. The loops fill in with a different color depending on how many pegs they touch.


Any loop that touches either three pegs or six pegs turns green.
Any loop that touches either four pegs or eight pegs turns purple.
Any loop that touches either five pegs or seven pegs turns spotted purple.


Replicating the given pattern with as few loops as possible requires strategic placement and overlapping of loops.


With dozens of handcrafted patterns to match, and thousands additional free play patterns, String Theory is a mind-bending game filled to the brim with tricky puzzles to get the gears turning!


No ads, no microtransactions.