A few challenging, ready-made riddle/puzzles (mostly door locks) : r/DnDBehindTheScreen
Secret Warforged Riddles : r/DnDGreentext
OC] The Zephyr Chamber - a dangerous, storm themed puzzle room! : r/DnD
The Alchemists Laboratory (Series of thematic Puzzles) : r/DnDBehindTheScreen
OC] chess puzzle : r/DnD
An epiphany on puzzles : r/DnD
OC] Rune Puzzle Doorway! Can you work it out? : r/DnD
The d100 list I never knew I needed: Sphynx/Puzzle Riddles. : r/DnD
I made a split-the-party puzzle, and need more ideas to continue the dungeon! [Non-system specific] : r/DnD
Art][OC] My New Sequence Logic Dungeon Puzzle. Too Easy? Too Hard? Just Right? : r/DnD
Can we get a favourite puzzle/trap thread going? : r/DnD
I built a puzzle dungeon with revolving mirrors and a laser light pen. PCs rotated the mirrors until the light hit a statue in each room that opened the next door while
DM: "in the next room, you see 4 doors before you numbered 6, 7, 8, & 9. Two doors are fake. one holds a terrible beast, the other? safe passage to the
This Cistercian monk numbering system (1-9999 with a single symbol) would be great for a rune puzzle in a D&D campaign! : r/dndnext
OC] A Moderately Challenging Word Puzzle (transcript in comments) : r/DnD
100+ Dungeon Puzzles & Mysteries (Community made resource) : r/DnD
Ideas to make a 3d Rotating Puzzle Room??? : r/DnD