UGIS - the Universal and Generic Imagination System

Publisher's blurb:

Ugis was born to tell stories, in a simple and fun way. It puts together a solid structure for easy, fast, and long-term play, without having narrative limitations from oppressive rules. It is suitable for everyone, from the beginner who has only heard of rpg, to the veteran who has been pounding the tables for decades offering challenges to suit every appetite, always remaining minimal and diligent to the concept that too many rules hurt. This system can create everything from a one-shot, going through individual adventures and ending up in structured campaigns and focuses on role-playing rather than on rules: everything that can be narrated (role-played) should be narrated without worrying about the rules.