The Ultimate Micro-RPG Book: 40 Fast, Easy, and Fun Tabletop Games (Ultimate Role Playing Game Series)

The Ultimate RPG Character Backstory Guide: Prompts and Activities to Create the Most Interesting Story for Your Character (Ultimate Role Playing Game Series)

Discworld Roleplaying Game

The Book of Random Tables: Dungeons: Generate Dungeons for Fantasy Tabletop RPGs (The Books of Random Tables)

GURPS Basic Set, Third Edition, Revised (GURPS Third Edition Roleplaying Game, from Steve Jackson Games)

The Ultimate Random Encounters Book: Hundreds of Original Encounters to Help Bring Your Next RPG Adventure to Life (Ultimate Role Playing Game Series)

The Ultimate RPG Character Backstory Guide: Expanded Genres Edition: Prompts and Activities to Create Compelling Characters for Horror, Sci-Fi, X-Punk, and More (Ultimate Role Playing Game Series)

A Dragon Walks Into a Bar: An RPG Joke Book (Ultimate Role Playing Game Series)

The Book of Random Tables: Science Fiction: 26 Random Tables for Tabletop Role-Playing Games (The Books of Random Tables)

GURPS Powers