Hex crawling rules, weather tables, and random encounters that actually tell a story (e.g., "A dying messenger hands the party a bloody scroll; the ink is written in the thief's own blood").
Every adventure needs a strong sense of place.
For any adventure, create at least three NPCs the party can talk to:
Add one twist that subverts expectations. Common twist types:
Twist placement: 60% through the adventure, so players have invested time but can still adapt.
Example trap:
Clue – Dried blood on the north wall. Trigger – Third flagstone from door. Effect – Wall-mounted spear shoots out (attack +5, 1d8 damage). Bypass – Step on stones 1,2,4,5.