The Infinity System
An universal RPG movement and combat system (36 pages)¸ intended to encompass vehicles and weapons from the stone age to the future including fantasy. It was a skill-based system using d20's for hit and damage. Character creation was random-roll attributes (3d6)¸ but had no classes or levels. The original rulebook included a very limited magic system. There were no supplements. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim