Decahedron was formed from the ashes of Frodus in 2002 when Frodus's Shelby Cinca and Jason Hamacher decided to continue playing together. At the time they recruited Fugazi bassist Joe Lally to play bass. They weren't sure on if the musical endeavor would go beyond just playing music, and In February of 2002 Hamacher left for a 3 month excursion to Eastern Europe and Turkey after recording drum tracks for the pair. Cinca and Lally then put together songs to the drums and decide that there's more to this than just a 'fun project'.