overgeeked
Open-World Sandbox
This is the short version. There's just too many great resources out there.
AD&D. Dungeon Master's Design Kit.
2E. Campaign Sourcebook and Catacomb Guide. Creative Campaigning.
OSR/NSR. Worlds Without Number for all your hexcrawl design needs.
Index Card RPG has one of the best GM advice sections of any RPG out there today. It's worth the cover price alone.
Dungeon Crawl Classics RPG has several amazing bits and bobs, the best of which are Quests & Journeys along with the Judge admonitions. It's maybe 10 pages of text in the 504-page book. It's worth borrowing and reading if you're not going to actually play DCC.
Black Hack. Black Sword Hack. Tome of Adventure Design. How to Write Adventure Modules that Don't Suck. Random Esoteric Creature Generator. Into the Odd. Knave. Maze Rats. Cairn.
Misc. The Game Master's Book of Proactive Roleplaying is one of the best GM advice books I've read in years. Simple idea, flip the script on players and turn them from reactive to proactive. Well worth the cover price.
The Ultimate RPG Game Master's Worldbuilding Guide. Return of the Lazy Dungeon Master.
Templates. Stuff you can look at as an example to make great stuff. Waking of Willowby Hall. Dark of Hot Springs Island. The Stygian Library.
Links. Absolute beast of a random world/continent generator: Azgaar's. Fantastic random realm, city, village, dungeon, glade generator: Procgen Arcana. Collected hexcrawl resources.
AD&D. Dungeon Master's Design Kit.
2E. Campaign Sourcebook and Catacomb Guide. Creative Campaigning.
OSR/NSR. Worlds Without Number for all your hexcrawl design needs.
Index Card RPG has one of the best GM advice sections of any RPG out there today. It's worth the cover price alone.
Dungeon Crawl Classics RPG has several amazing bits and bobs, the best of which are Quests & Journeys along with the Judge admonitions. It's maybe 10 pages of text in the 504-page book. It's worth borrowing and reading if you're not going to actually play DCC.
Black Hack. Black Sword Hack. Tome of Adventure Design. How to Write Adventure Modules that Don't Suck. Random Esoteric Creature Generator. Into the Odd. Knave. Maze Rats. Cairn.
Misc. The Game Master's Book of Proactive Roleplaying is one of the best GM advice books I've read in years. Simple idea, flip the script on players and turn them from reactive to proactive. Well worth the cover price.
The Ultimate RPG Game Master's Worldbuilding Guide. Return of the Lazy Dungeon Master.
Templates. Stuff you can look at as an example to make great stuff. Waking of Willowby Hall. Dark of Hot Springs Island. The Stygian Library.
Links. Absolute beast of a random world/continent generator: Azgaar's. Fantastic random realm, city, village, dungeon, glade generator: Procgen Arcana. Collected hexcrawl resources.