M-Space

M-Space is a d100-based rules system for science fiction roleplaying. Everything needed to play sci-fi games is included here. With this book, a pencil and some paper, you will be able to create imaginary universes and play characters from a variety of cultures and careers. They can pilot starships, meet strange alien lifeforms and visit fantastic worlds.

The game engine used for all this is Mythras Imperative. If you are familiar with any closely related d100 game, you will feel right at home.