Doom: The Dark Ages: Ruby Locations & Interactive Tracking Guide

Rubies are the mid-tier upgrade currency in Doom: The Dark Ages — the resource that bridges Gold and Wraithstones across the full upgrade tree at every Sentinel Shrine.

They are spent on second and third-tier upgrades for all 16 weapons in the Arsenal, Shield Base upgrades, Shield Rune upgrades, and all melee weapon abilities — covering far more of the upgrade tree than Gold alone.

There are 38 Rubies in the campaign: 34 found in the world and 4 earned from Mission Challenges.

All 38 are documented across MapMaster's interactive chapter maps for Doom: The Dark Ages.

38 Available, 33 Required — a 5 Ruby Margin

Fully upgrading every weapon, Shield Base, Shield Rune, and melee weapon for the Gunpletionist and Berserker trophies requires exactly 33 Rubies. The campaign provides 38, giving a 5 Ruby surplus — players who miss up to 5 Rubies across all chapters still complete the full upgrade tree without needing to replay chapters for the missed ones.

Rubies appear on the AutoMap as a Red Gem Icon when the Slayer is nearby. Like Gold, they are marked only on approach — not pre-revealed. Sweep the AutoMap after every major traversal and combat sequence to catch any that were missed.

Two Acquisition Sources

34 world Rubies — almost all held by small kneeling Sentinel statues that emit a bright red glow. Most require either defeating nearby demons to lower a barrier, solving an environmental puzzle, or opening a key-locked gate before the statue becomes accessible.

4 Mission Challenge Rubies — one Ruby each from:

• Countercult (Chapter 5: The Holy City of Aratum) — dispatch all three Cultist Circles
• Ghost Buster (Chapter 8: Abyssal Forest) — parry 3 Revenant projectiles
• Wait For It (Chapter 12: Sentinel Command Station) — kill 10 demons with explosive barrels
• Berserker (Chapter 19: Harbor of Souls) — kill 75 demons while in Berserk mode

The Swashbuckler Challenge: Rubies Tied to a Chapter Completion

The Swashbuckler Mission Challenge in Chapter 17: Temple of Lomarith requires collecting all Rubies and Wraithstones within that chapter — making Chapter 17's 2 Rubies simultaneously required for both the upgrade count and the challenge reward of 50 Gold.

Missing either Ruby in Chapter 17 blocks the Swashbuckler challenge.

Richest and Most Challenging Ruby Locations

• Chapter 6: Siege – Part 1 — 4 world Rubies, the highest concentration of any single chapter: under the large bridge (destroy the nearby corruption and demonic portal), in the cave cage via a lever, behind the Purple Gate, and on a plateau statue guarded by three wolf statues that must all be destroyed with the Shield first.

• Chapter 4: Sentinel Barracks — the first Ruby of the campaign sits on a statue beside the gate needed to exit the Barracks and is awarded automatically as part of the main mission objective. The only Ruby in the game that cannot be missed.

• Chapter 16: The Kar'Thul Marshes — the single most complex Ruby puzzle in the game. After passing through the gate, the Slayer is teleported to another room. Dive into the pool, land on the platform, Shield Throw at the heated metal under the gate ahead, drop from the platform, align the Cosmic Eye Frame with the green eye behind it, then Shield Throw to shatter it. Dive again, land on the platform, jump to the statue. Multiple steps, each requiring precise execution.

Chapter Distribution at a Glance

Rubies first appear in Chapter 4 and continue through to Chapter 22: Reckoning, which contains 3. Chapters with no Rubies: Chapter 1, 2, 3, 11, 13, and 21.

Chapters with the most outside Chapter 6: Chapter 5, Chapter 10: The Forsaken Plains, Chapter 14: Spire of Nerathul, Chapter 20: Resurrection, and Chapter 22 each contain 3. Every Ruby's position and access method is in the Secret Areas overlap — finding all Rubies and all Secrets in the same chapter sweep is the most efficient 100% strategy.