True Oath achievement icon

True Oath Valor Mortis achievement · Boss

Boss#15 most common of 39
Unlocked by
1.3%
Rarity
#15 most common
Type
Boss
Methodology
Data Methodology

Defeat Justicar Aurelius. 1.3% of Steam players have unlocked True Oath, the #15 most common of the game's 39 achievements.

Unlocked by
1.3%of Steam players
Rarity
#15most common of 39
Type
Boss10 achievements of this type
Unlocks from
High Justicar Aurelius
Location
The Outskirts
Related guideValor Mortis Trophy Guide: All 39 Achievements & Roadmap

How to get True Oath

Game data

In-game condition: “Defeat Justicar Aurelius.”

True Oath unlocks when you defeat High Justicar Aurelius, Last of the Faithful, the sixth boss, in The Outskirts during Chapter VII Witch Hunt. The Breach Lantern is only about 32 m from the fight.

Aurelius has the lowest Health of any boss, 1,500, but a 1,000-point Posture bar, so you win by damage rather than by breaking him. Don't aim for the head: it takes only half damage. His chest and groin take ×1.2 instead. Five of his 14 attacks are unblockable (a grab, a Nephto leap, a Nephto slam, a poke follow-up and a backstep), and the grab is his hardest hit at 70.

The kill pays 18,000 Catalysts. Experiment 83 waits in the same region, so you can collect both Outskirts boss achievements on one visit.

Data: Steam build 25907482 (1.0 launch). How we source this

The fight: High Justicar Aurelius

Game data

Where the boss is and what the kill pays, from the game files.

High Justicar Aurelius boss guide: moves, weaknesses and damage →

True Oath is a Boss achievement in Valor Mortis: Defeat Justicar Aurelius. 1.3% of Steam players have it, the #15 most common of 39. That is rarer than the average Boss achievement (4.9%). It comes from boss 6 of 10, fought in The Outskirts, and the kill pays 18,000 Catalysts.

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True Oath achievement FAQ

How do you get the True Oath achievement in Valor Mortis?

True Oath unlocks when you defeat High Justicar Aurelius, Last of the Faithful, the sixth boss, in The Outskirts during Chapter VII Witch Hunt. The Breach Lantern is only about 32 m from the fight. Aurelius has the lowest Health of any boss, 1,500, but a 1,000-point Posture bar, so you win by damage rather than by breaking him. Don't aim for the head: it takes only half damage. His chest and groin take ×1.2 instead.

How rare is the True Oath achievement?

1.3% of Steam players have unlocked True Oath, which makes it the #15 most common of the 39 achievements in Valor Mortis.

Is True Oath missable?

Nothing in the game data locks True Oath out: no dialogue choice or quest branch is tied to it. The usual caution still applies: Napoleon's Prison and Entropy have no fast travel, so finish anything in earlier regions before you enter them.

What kind of achievement is True Oath?

True Oath is one of 10 Boss achievements in Valor Mortis. The others are Torn Banner, Ultima Ratio Regum, Not a Cat Person, Quixotry, My Dying Bride, Lament of the Limbs, Coup de Grâce, Behemoth, In His Own Image.

Do you need True Oath for Nephtis Superioris?

Yes. Nephtis Superioris, the all-achievements unlock, needs every one of the other 38 achievements, True Oath included.

Where is High Justicar Aurelius in Valor Mortis?

High Justicar Aurelius is boss 6 of 10, fought in The Outskirts during Chapter VII Witch Hunt. The nearest Lantern is Breach, about 32 m from the fight, and the kill pays 18,000 Catalysts.