Tri-Stat dX 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 dX has adaptable rules that can be applied to many genres and settings.
Tri-Stat dX's name comes from the system's three main Stats: Mind, Body, and Soul. "dX" refers to the polyhedral dice used in the game: any of the available die types may be used.
It is based on the original Tri-Stat System first introduced in 1999 with the popular Big Eyes, Small Mouth (BESM) anime-genre RPG (which used d6 dice), which is now published by White Wolf, 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 Tekumel (which uses a variation of the system).
The core rules for the Tri-Stat dX 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.