D&D Puzzles: 17 Clever Puzzles & Mysteries for DMs
Color Keys – Color-themed puzzles for your D&D game! — Dungeon Snacks
The Game Master's Book of Traps, Puzzles and Dungeons: A punishing collection of bone-crunching contraptions, brain-teasing riddles and ... RPG adventures (The Game Master Series): Ashworth, Jeff, Hilton, Kyle, Bhullar, Jasmine, Three
D&D: Enhance Lore and Exploration Pillars with Different Types of Puzzles — Crit Academy
D&D Puzzles: 17 Clever Puzzles & Mysteries for DMs