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The Binding of Isaac: Rebirth — How to Get Dead God

Dead God completion roadmap: 100% achievements, all hard mode marks, item collection, secrets, and optimal unlock order for Repentance+.

Dead God is The Binding of Isaac: Repentance's ultimate achievement — proof of 100% game completion. It requires every hard mode completion mark on all 34 characters, every item collected, every secret unlocked, every challenge beaten, and every ending witnessed. Most players invest 500–1500 hours reaching Dead God. This guide provides a structured roadmap rather than a single-run walkthrough.

What Dead God Requires

  • All hard mode marks — Every boss mark on Normal and Tainted characters in hard mode only.
  • Full item collection — Pick up every item in the game at least once (719+ items).
  • All 637+ secrets — Every achievement and unlock condition met.
  • All 45 challenges — Including Ultra Hard and DELETE THIS.
  • All endings — 22+ ending sequences triggered.
  • Supporting achievements — Real Platinum God, 1001%, 1000000%, and True Ending.

Recommended Progression Order

Follow our optimal unlock order to avoid diluting item pools with weak early unlocks. Unlock powerful items first (Sacred Heart, R Key, Sacred Orb), then strong characters (Azazel, Tainted Azazel, Tainted Isaac). Save Tainted Lost, Tainted Jacob, and The Lost hard marks for late progression when your item knowledge is deep. Use the completion tracker to monitor remaining marks and missing items.

Common Dead God Bottlenecks

BottleneckSolution
Tainted Lost hard marksUnlock Holy Mantle first; practice quality 4 shop builds
Tainted Jacob marksMaster Dark Esau mechanics; use Birthright when available
Ultra Hard challengeUnlock R Key and Psy Fly; save for dedicated attempt
Missing itemsUse Platinum God tracker; check mark reward items per character
Greedier marksDonate 500 coins to unlock Greedier; use Azazel for efficiency

Track progress with our Dead God progression page and secrets list. Repentance+ additions may increase the total completion count — check patch notes on our Repentance+ guide.

Frequently Asked Questions

How long does Dead God take?

Most players report 500–1500 hours depending on skill, unlock order, and guide usage.

Do normal mode marks count?

No. Only hard mode completion marks count toward Dead God.

Can I use seeds for Dead God progress?

No. Seeded runs disable all unlocks and collection progress.

What is the last thing most players complete?

Tainted Lost hard marks, Ultra Hard challenge, and obscure item collection from rare mark rewards.

Video Guide

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