Overview
- Doom: The Dark Ages, a medieval-themed prequel, features 164 hidden secrets spread unevenly across its 22 chapters.
- Secrets are concealed behind breakable walls, environmental puzzles, and hidden side passages, challenging players' exploration skills.
- Rock Paper Shotgun's guide organizes secrets by chapter and includes annotated maps for efficient discovery; several maps are still marked 'coming soon.'
- Rewards for uncovering secrets include codex entries, collectible toys, skins, wraithstones, rubies, and gold, with significant variation in quantity and type across chapters.
- Three chapters—3, 13, and 21—contain no secrets, while Chapter 20 has the highest count with 12 hidden areas.