About

Silas Rhyneer

Founder, Developer

Hi! I'm Silas, the creator of Co-GM. I've been running tabletop games my whole life, and for years I struggled to make digital tools work at the table. Notes in one tab, random tables in another and a rulebook in a third was a giant pain, and I knew there had to be a better way. So I built Co-GM.

Co-GM is a tool for notes, random generators, calendars, rules and dice. Because it was built by a GM, those pieces work together, so you can focus on running the game. I've used it to run my own games for years. This version is rebuilt from the ground up, and it works on your phone too.