Castrum Meridianum dungeon guide
Castrum Meridianum source-backed dungeon guide: unlock facts, first-clear prep, local mechanic notes, and related wiki source links.
On This Page
- Dungeon quick facts
- Before queueing
- Duty Support
- Boss and mechanic notes
- Duty finder and rewards context
- Completion notes
- Verification boundary
Dungeon quick facts
So begins the third phase of Operation: Archon, which entails a frontal assault upon Castrum Meridianum, Gaius van Baelsar's seat of power. Forming the main thrust, the Immortal Flames will strike at the stronghold with all their strength, though this is but a feint. While the garrison's eyes are drawn outwards, you and your comrades must steal past its defences and attempt to deactivate the magitek field which protects the Praetorium, the fortress within a fortress wherein the Ultima Weapon is believed to be housed.
- Category: Dungeon
- First Appearance: Patch 2.0, *A Realm Reborn*
- Level: 50
- Item Level Requirement: 42
- Party Size: Light Party (4 players)
- Required Quest: Rock the Castrum
- Entrance: Northern Thanalan
- Entrance Coordinates: 15.5,16.8
- Region: Thanalan
Before queueing
Use the quick facts to check level, item level, party size, required quest, entrance, roulette, and time limit before queueing for Castrum Meridianum.
- Repair gear and meet the listed level/item-level requirements.
- Tell the party if it is your first clear.
- Use the local wiki link for exact duty facts and related articles.
Duty Support
Local wiki data lists Duty Support or NPC options for this duty. Use this mode when you want story pacing, screenshots, or a low-pressure first read of arena mechanics.
- Storm Marauder: Marauder (Tank)
- Serpent Conjurer: Conjurer (Healer)
- Flame Thaumaturge: Thaumaturge (DPS)
- Serpent Lancer: Lancer (DPS)
Boss and mechanic notes
Castrum Meridianum has local boss notes for: The Black Eft, Magitek Vanguard F-1, Livia sas Junius. These notes are pulled from the local wiki and should be treated as source-backed prep unless separately marked as human-reviewed strategy.
- Incendiary Support: Deals 3 hits of moderate raidwide damage.
- Request Assistance: Summons additional imperial soldiers to the battle.
- Magitek Cannon: A large circular AoE attack that targets a random player, dealing heavy damage to all players hit.
- High-powered Magitek Ray: An untelegraphed line attack that deals heavy damage to all players directly in front of the boss.
- 34,514 Experience Points
- Cermet Drill: Tankbuster.
- Thermobaric Strike: Places a flare in a random corner of the arena. Players should move to the other corner to lower the damage taken.
- Hypercharge: The boss will reposition at the center of the arena and fire a donut AoE and circle AoE, leaving only a small donut as a safe spot.
- Overcharge: A frontal cone AoE attack that deals heavy amount of damage and inflicts the debuff Paralysis to all players hit.
- Targeted Support: Drops an AoE on all players that must be avoided by moving out of it.
- 60,396 Experience Points
- Aglaea Climb: Tankbuster.
- Artificial Plasma: Unavoidable raidwide damage that must be healed through.
- Roundhouse: Livia will reposition to the center and cast a circle AoE followed by 8 AoEs on the border of the arena. Avoid by moving out then moving in.
Duty finder and rewards context
Use this section to decide whether the duty belongs in roulettes, high-end queues, mentor roulette, or repeat farming.
- Duty Finder: Dungeons (A Realm Reborn)
- Roulette: main scenario
- Modes: duty support, explorer
- Time Limit: 90
Completion notes
After your first clear, check whether the duty has mapping, clear, Blue Mage, loot, music, or collection reasons to return.
- Achievement: Mapping the Realm: Castrum Meridianum
- Music: Main: The Emperor's Wont
- Music: Mid-Bosses: A Fine Death|roll=n
- Music: Final Boss: Steel Reason
Verification boundary
This page is generated from local TJPedia wiki data. It does not invent missing mechanics, NPC coordinates, loot tables, or current-party-finder strategies. High-end positioning and current-prog tactics still need human review before being labeled as a full strategy guide.
- Source-backed: duty facts, local boss notes, achievements, and music.
- Needs human review: exact high-end progression strategy.
- Use official patch notes for changed requirements or rewards.
Related on TJPedia
Sources
Auto-draft eligible, human review required for volatile guide updates.