The Phase Six ruleset forms the foundation for the role-playing games Realms of Tirakan and NEXUS. It is a collection of modular rules that can be flexibly combined to suit a particular adventure. Use these rules when you want to run an adventure set in the real world or in a world of your own creation.

Realms of Tirakan is a thousand-year dark fantasy saga. In a medieval world inhabited by elves, dwarves, and other extraordinary peoples, a dark power threatens the fabric of time itself. The players choose the century in which the game will take place.

The adventures of Division V of the NEXUS take place in an alternate present day. The NEXUS organization operates in secrecy to protect humanity from extraterrestrial and paranormal threats. The characters are agents of this organization, fully equipped with futuristic technology and prepared for anything.