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A sourcebook for the Platinum RPG and the Strife Wargame

A RPG and wargame sourcebook for the movie 300 and the historical Battle of Thermopylae

Interstellar warfare between the three most lethal species

Anime Skirmishes in Masamune Shirow's cyberpunk post-apocalypse

A man from the future fights Deadites

a d100 system in 2 pages by Kobayashi

The Mythras Roleplaying Game

Quickstart Rules and Adventures

Systems Reference Document and Open Game License

Handouts, Charts and Character Sheets for Basic Roleplaying Universal Game Engine

This is the Core TTRPG universal system for the books on this site.

1981 Style Multi-Genre d100 RPG (based on Chaosium's BRP system)