With Extreme Prejudice
A sci-fi RPG by Apex Publishing. The full version was never published¸ but several hundred copies of a pre-release were sold at GenCon which included the battle rules but not full role-playing material. It was illustrated by C. Brent Ferguson¸ edited by Peter Mork. It was set in a futuristic interstellar setting with humans and several alien races. The prerelease version uses a dice pools system where you add together base dice for the weapon and the character's ability in that weapon class. Die types range from d3 to d12. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim