Chaosium, like other early RPG publishers, created several games in different genres, each with its own set of rules for character generation, combat, etc.

The Magic World booklet, written by Steve Perrin and Gordon Monson, is a fantasy RPG similar to Dungeons & Dragons and RuneQuest.

Initial characters can start as one of four professions (Warriors, Rogues, Sages and Sorcerers) and one of the standard Tolkienesque fantasy races, such as dwarfs, trolls, goblins, and elves.

The Future World booklet, also written by Perrin and Monson, with interior and cover art by Rick Becker, is a science fiction setting similar to Traveller by Game Designers Workshop.

Characters can start as members of one of six professions (Army, Civilian, Criminal, ICE, Scouts, or Science), and can choose human, several types of aliens (ursinoids, insectoids, and saurians), or a robot as their race.

The setting is the modern world, where, similar to the superhero RPGs Villains & Vigilantes and Champions, the player characters have superpowers.

[3] Barton commented that "Overall, though its component parts may not be earth-shattering or overly innovative, Worlds of Wonder is still a pretty good buy.

Worlds of Wonder more than a set of minigames, it’s a major game system, and well worth exploring for both the novice and the experienced rolegamer.

Swan felt that Super World was the best of the three genres, calling it "an entertaining and exciting introduction to comic-book-hero role-playing."