Arkham Horror (Third Edition) · Expansion

Arkham Horror (Third Edition): Under Dark Waves

Worth it

Our take
BGG rates it 8.42 from 1,036 ratings. BGG posters call its scenarios easier and more numerous (four) than Secrets of the Order, but say it feels less polished.
What you need first
Just the base game
What it adds
Four new scenarios, eight new investigators and special locations, with minor new mechanics.

Compare it

Sources

Last checked 2026-10-15. Spot a mistake? Tell us.