DOOM: The Dark Ages Collectibles Checklist 2026 — Every Secret, Upgrade & Missable Per Level

2026-06-26·Secrets & Collectibles

I missed the Sentinel Crystal in Mission 4 and didn't realize until Mission 17 when I was one upgrade short of maxing dash cooldown. Had to replay the entire mission. Here's every collectible per mission.

What you're collecting

  • Praetor Suit Tokens (24 total): Upgrade suit abilities. One token per upgrade point.

  • Sentinel Crystals (24 total): Upgrade ability trees — health, armor, ammo, equipment. 20 needed for complete build, 24 to max.
  • Rune Stones (9 total): Unlock Runes and Rune slots. Unmissable — on the main path.
  • Weapon Mods (16 total): Two per weapon (8 weapons × 2 mods).
  • Albums (12 total): Vinyl records. All 12 unlocks "Hell's Greatest Hits" achievement.
  • Cheat Codes (15 total): Gameplay modifiers. Found in secret areas.

Mission 1: Argent D'Nur

  • Suit Tokens: 2 (main path — unmissable)
  • Sentinel Crystals: 1 (first courtyard after Glory Kill tutorial — turn left instead of going through marked door)

Mission 2: The Citadel Gates

  • Suit Tokens: 2 (after first Mancubus — alcove behind left pillar; top of spiral staircase — breakable wall on right)
  • Crystals: 2 (under bridge before crossing; library behind movable bookcase)
  • Weapon Mods: Heavy Cannon Precision Bolt (unmissable)

Mission 3: Hell's Anvil

  • Suit Tokens: 2 (lava waterfall climbable wall ledge; platform behind elevator after elevator fight)
  • Crystals: 2 (forge upper walkway via double-jump from anvil; hidden platform under lava bridge)
  • Rune Stones: Savagery (unmissable, after forge fight)

Mission 4: The Exultia Ruins

  • Suit Tokens: 2 (side rooms off central chamber — explore before exit portal)
  • Crystals: 3 (underwater tunnel in first pool; cathedral upper balcony via monkey bars; behind waterfall near exit — MOST COMMONLY MISSED)
  • Albums: 1 ("Hell Bent for Leather" — cathedral organ room, punch organ keys: left, right, middle)

Mission 5: Blood Keep

  • Suit Tokens: 2 (cell 7 cracked wall; throne room above throne via wall-jumps)
  • Crystals: 2 (bottom of blood pit — drop deliberately; executioner's balcony via dash)
  • Cheat Codes: 1 ("IDDQD" — torture chamber behind false wall, punch skull)

Mission 6: The Arc Complex

  • Crystals: 2 (data center server racks back corner; CEO office — break glass, jump to adjacent ledge)
  • Albums: 1 ("Rip and Tear, Volume 2" — DJ booth in nightclub section)
  • Weapon Mods: Ballista Destroyer Blade (armory, requires data center keycard)

Mission 7: Taras Nabad

  • Suit Tokens: 3 (courtyard fountain bottom; collapsed statue head after Marauder fight; garden maze — follow left wall to center)
  • Crystals: 2 (central tower top floor; sewer fork left path dead end)

Mission 8: Citadel of Tears

  • Rune Stones: Chrono Strike (unmissable, central chamber)
  • Suit Tokens: 2
  • Crystals: 2
  • Albums: 1 ("Synthwave Slayer" — elevator music room)

Missions 9-14: Nekravol through Sentinel Prime

  • Mission 9 (Nekravol): 2 Suit Tokens, 2 Crystals, Cheat Code "IDKFA" (jail cell with corpse holding note)
  • Mission 10: 2 Suit Tokens, 1 Crystal, 1 Album
  • Mission 11 (Argent Facility): 2 Suit Tokens, 3 Crystals — explore thoroughly, this catches up missed upgrades
  • Mission 12 (Sentinel Training): 1 Suit Token, 2 Crystals, Rune Stone (Dazed and Confused — complete optional challenge)
  • Mission 13 (Phobos Base): 2 Suit Tokens, 1 Crystal, 1 Album, 1 Cheat Code
  • Mission 14 (Sentinel Prime): 1 Suit Token, 2 Crystals

Mission 15: Blood Swamps

  • Rune Stones: Last Rune slot unlock (unmissable)
  • Suit Tokens: 2
  • Crystals: 2
  • Albums: 1 ("Swamp Blues" — witch's hut gramophone)
  • Cheat Codes: "IDCLIP" and "IDBEHOLD" (underground crypt behind destructible walls)

Missions 16-22: Endgame

  • Mission 16 (Immora Gates): 1 Crystal, 2 Albums
  • Mission 17 (Immora): 2 Crystals, 1 Album
  • Mission 18 (The World Spear): 1 Suit Token, 1 Crystal
  • Mission 19 (Dark Lord's Keep): 2 Suit Tokens, 1 Crystal, 2 Cheat Codes
  • Mission 20 (Final Sin): 1 Suit Token, 1 Album
  • Mission 21 (Hell's Heart): 1 Album
  • Mission 22 (Icon of Sin): No collectibles (final boss)

Auto-map and replay tips

After Mission 8, Auto-Map shows collectible locations as "?" markers. Fast travel to completed missions and sweep for missed items. Collectible progress saves permanently — replay missions collect only what you missed. Best missions to replay for cleanup: Taras Nabad (Mission 7) — highest collectible density; The Arc Complex (Mission 6) — most commonly missed items.