The Düngeonmeister RPG Sticker Book: 500+ Stickers to Level Up Your Campaign (Düngeonmeister Series)

Steve Jackson Games Gurps Basic Set Campaign – Comprehensive RPG Board Game Guide Create Infinite Worlds and Adventures for Ages 14+ and 1+ Players

The Ultimate RPG Series Presents: Oh Captain, My Captain!: A Quick-Play Fantasy RPG (Ultimate Role Playing Game Series)

Dungeons and Dragons Dungeon Maps for Game Masters Vol 2: 100 Unique Maps and Background Stories for TTRPG's

GURPS Supers

The Book of Random Tables: Quests 2: 1000 Adventure Ideas for Fantasy Tabletop Role-Playing Games (The Books of Random Tables)

The Great Book of Random Tables: 120 D100 Random Tables for Fantasy Tabletop Role-Playing Games (The Books of Random Tables)

Random Tables: Cities and Towns: The Game Master's Companion for Developing Inns, Shops, Taverns, Settlements, and More

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

The Book of Random Tables: Fantasy Role-Playing Game Aids for Game Masters (The Books of Random Tables)