Tri-Stat System

Tri-Stat is a generic role-playing game system developed and published by Guardians of Order in 2003. Like other generic role-playing game systems, Tri-stat has adaptable rules that can be applied to many genres and settings.

Tri-Stat's name comes from the system's three main Stats: Mind, Body and Soul.

Source: Wikipedia, "Tri-Stat_dX", available under the CC-BY-SA License.

Tri-Stat is based on the original Tri-Stat System first introduced in 1997 with the popular Big Eyes, Small Mouth (BESM) anime-genre RPG (which used d6 dice), which is now published by White Wolf Entertainment AB, and the superhero-genre RPG Silver Age Sentinels (which used d10 dice), and now includes a number of related systems and games such as Ex Machina, Dreaming Cities, and Tékumel (which uses a variation of the system).

The core rules for the Tri-Stat system were also available as a free download on the Guardians of Order website. However, as Guardians of Order is now defunct, the status of support for the game is uncertain. The most recent incarnation of the game system is in the third edition of BESM.

Source: Wikipedia, "Tri-Stat dX," available under the CC-BY-SA License.