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Character Isaac appearance.png
Full red heartFull red heartFull red heart
Table dividing line 1.png
Challenge Number
Available Rooms
Item Pool Treasure Room.png: no          Item Pool Shop.png: yes
Boss Mom's Heart.png
Unlock Method

Purist Defeat Mom

Purist is challenge #20. This challenge is unique because Isaac starts with no items. The goal is to defeat Mom's Heart or It Lives. This Challenge is unlocked after defeating Mom for the first time.

Difficulty[edit | edit source]

Because there is no Treasure Room, it is harder to find items. While this is standard for most challenges, Isaac also doesn't start with any items.

Strategy[edit | edit source]

  • Other special rooms become much more important.
  • Bombs are much more valuable when hunting for Secret Rooms as these can provide free items.
  • Removed in Repentance Curse Rooms guarantee damage and can lower the chances of Devil Rooms. However, if Isaac has a full Soul Heart, Black Heart, or Added in Afterbirth † Bone Heart, the reward can outweigh the damage and still allow Isaac to access a Devil Room. Alternatively, wait to enter the Curse Room until after visiting the Devil Room.
  • 15►The Bible The Bible can be used to instantly win the boss fights against Mom, which can be used to preserve key health, and Mom's Heart/It Lives, which will complete the challenge.

Reward[edit | edit source]

MainPageChallenges.png Challenges MainPageChallenges.png

1. Pitch Black 2. High Brow 3. Head Trauma 4. Darkness Falls 5. The Tank 6. Solar System 7. Suicide King
8. Cat Got Your Tongue 9. Demo Man 10. Cursed! 11. Glass Cannon 12. When Life Gives You Lemons 13. Beans! 14. It's in the Cards
15. Slow Roll 16. Computer Savvy 17. Waka Waka 18. The Host 19. The Family Man 20. Purist
21. XXXXXXXXL 22. SPEED! 23. Blue Bomber 24. PAY TO PLAY 25. Have a Heart 26. I RULE! 27. BRAINS!
28. PRIDE DAY! 29. Onan's Streak 30. The Guardian
Afterbirth †
31. Backasswards 32. Aprils Fool 33. Pokey Mans 34. Ultra Hard 35. Pong
36. Scat Man 37. Bloody Mary 38. Baptism by Fire 39. Isaac's Awakening 40. Seeing Double 41. Pica Run 42. Hot Potato
43. Cantripped! 44. Red Redemption 45. DELETE THIS
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