The Glyos System is a series of toys produced by Matt Doughty and Michelle Doughty of Onell Design and sold exclusively on their website, These three-inch-tall figures feature a simple peg and socket joint system known as the “Fit Function” that makes them completely interchangeable with one another, allowing for limitless build options.

The back story for the series is fleshed out in blog posts, comics, and a series of animations and mini-games in the website’s Passcode section. Alongside Onell Design is Jesse Moore’s Callgrim, a mercenary character from the Glyos System story, and a compatible toy series that also uses the standard peg and socket construction.