Welcome To The Gemini System

A genre-agnostic tabletop role-playing game (TTRPG) meant to be a lightweight, adaptable mesh of rules to be overlayed on an existing setting. Uses a modified OpenD6 ruleset infused with Hero System character building DNA. The Gemini System is ready to be used as an engine to tell your stories.

gemini_intro.pdf

Gemini Has An App

Download Gemini Studio and build, print, and manage your Gemini characters on your phone.

Gemini Has Roll20® Support

Use the app to export and play on Roll20®.

Character SheetDice Importer

Connect With The Community

Join the conversation on the official Gemini Discord.