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Hades II Nightmare Guide — The Vows of Fear

Updated 2 Nov 2026 Source Compiled from Hades II gameplay guides (fextralife, GameSpot, Rogue Ranker, IGN) and in-game Fear mechanics, 2 November 2026. Official wiki.gg/fandom were Cloudflare-blocked at research time; some values may shift with patches — verify in-game. By Antewise Editorial
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.

Fear replaces Heat

Hades II uses Fear (the Oath of the Unseen) instead of Hades I’s Pact of Punishment. Beat Chronos once to unlock it. Each Vow adds a modifier and a Fear total (caps around 55–67).

The Vows (key ones)

  • Vow of Pain — enemy damage +20 / 60 / 100%.
  • Vow of Grit — enemy health +10 / 20 / 30%.
  • Vow of Frenzy — enemy speed +20 / 40%.
  • Vow of Hordes — +20 / 40 / 60% enemies per encounter.
  • Vow of Menace — 10 / 25% of enemies come from the next region.
  • Vow of Scars — healing only 75 / 50 / 0% effective.
  • Vow of Time — region timer 9:00 / 7:00 / 5:00.
  • Vow of Void — Arcana Grasp limited to 60 / 40 / 20 / 0%.
  • Vow of Hubris — taking a higher-tier Boon charges 3 / 6 Magick per tier above normal.
  • Vow of Rivals — the regional Guardian is empowered (1st / 2nd / 3rd / 4th region).

There are 17 Vows in total; these are the ones that shape most runs. Higher Fear earns Nightmare, used to upgrade weapon Aspects.

Climb in steps

Clear a run comfortably at 0 Fear first. Then raise one Vow at a time — each step teaches the new pressure before the next stacks. A Fear level you can clear beats a higher one you wipe on.

Build for survival

High Fear punishes glass cannons. Keep one source of control, one of sustain, and an escape. Damage alone stops carrying you.

Frequently asked questions

What is Fear in Hades II?

Fear (the Oath of the Unseen) replaces the Pact of Punishment from Hades I. Each Vow adds a modifier that makes enemies hit harder, act faster, or change how the run flows.

Should I raise Fear before my build is solid?

No. Learn the route and one strong build at zero Fear first. Add Fear only after a run feels comfortable, then raise it in small steps.

More Hades II guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.