Co-op baby · Achievement #175
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Defeat Mom's Heart or It Lives! on Hard mode as The Lost.
Repentance · normal character
The Lost
Compare base stats, review starting health and inventory, learn how to unlock the character, and follow their completion rewards.
Character unlock
How to unlock The Lost
Die in a Sacrifice Room while holding Missing Poster. Afterbirth and later method; Rebirth used a different sequence.
Read unlock guideBase stat profile
Starting combat stats
Values before collectibles, temporary effects, and most character mechanics. Comparison labels use Isaac's standard 1.00 speed, 2.73 tears, 3.50 damage, 6.50 range, 1.00 shot speed, and 0.00 luck as the baseline.
- Speed
- 1.00 Baseline
- Tears / sec
- 2.73 Baseline
- Damage
- 3.50 Baseline
- Range
- 6.50 Baseline
- Shot speed
- 1.00 Baseline
- Luck
- 0.00 Baseline
Reviewed Repentance 1.7.9b reference values. Combat stats are hardcoded by the game and are not stored in the extracted player XML. Check the The Lost reference ↗
Which pickups help this character?
Choose The Lost in the health helper to compare red healing, temporary hearts, coins, and special pickups. For characters with several forms, choose the current form as well.
What do these stats change in a fight?
Read the six HUD stats, understand tears versus shot speed, and compare damage with firing rate. Special weapons and conditional effects need their own rules.
Stats and combat guideHow The Lost works
Check the Lost's Mantle unlock, retreat after its shield breaks and weigh Eternal D6 against losing a pedestal.
Unlocked Mantle and Eternal D6: rules and examples →Run setup
Starting health and inventory
Base health, pickups, and collectibles from the Repentance player records. Unlockable starting upgrades and special mechanics can change what appears in a run.
Starting health and pickups
NoneVisible health
1Coins
The Lost uses a one-hit health state; Holy Mantle can provide one protected hit after its starting upgrade is unlocked.
Starting items
Greed donation progression
The Greed Donation Machine unlocks Cain's Paper Clip, Eve's Razor Blade, The Lost's Holy Mantle, and Keeper at different saved coin totals.
Compare milestones and plan the next depositUnlockable starting upgrades
1 permanent upgradeThese are save-file upgrades earned through achievements or challenges. They are not part of the base player record above.
Birthright
Better destiny
Future item choices exclude effects that mainly grant health, flight, spectral tears, or benefits after taking damage.
Pickup line from the game files. Effect summary checked against External Item Descriptions. See the Birthright item page for general mechanics.
More to earn
Other character rewards
Co-op companions and Soul Stones tied to this character's completion marks.
Cards and runes
Pocket rewards from completion marks
1 reviewed achievement for this character. Each card names the mark that unlocks it.
Character rewards
Unlockable items and trinkets
11 item reward entries linked to The Lost. Follow the exact requirement shown on each card. Some tainted rewards require a group of completion marks.
Collectible · Achievement #129Isaac's HeartDefeat Isaac as The Lost.
Collectible · Achievement #130The MindDefeat Satan as The Lost.
Collectible · Achievement #131The BodyDefeat ??? (the Chest boss) as The Lost.
Collectible · Achievement #132The SoulDefeat The Lamb as The Lost.
Collectible · Achievement #133D100Complete Boss Rush as The Lost.
Collectible · Achievement #156GodheadEarn every Hard mode completion mark as The Lost.
Collectible · Achievement #189Sworn ProtectorDefeat Hush as The Lost.
Collectible · Achievement #202ZodiacDefeat Ultra Greed as The Lost.
Collectible · Achievement #307Dad's Lost CoinDefeat Ultra Greedier as The Lost.
Collectible · Achievement #460Lost SoulDefeat Mother as The Lost.
Collectible · Achievement #461Hungry SoulDefeat The Beast as The Lost.These are collectible and trinket rewards in the verified item unlock list. Co-op companions, Soul Stones, cards, and runes with reviewed mark requirements appear in the sections above.
Character-selection and achievement art are from the extracted Repentance files. Starting health, pickups, and items reflect the base player records with reviewed special-character conversions. Combat stats use reviewed Repentance 1.7.9b references because those values are hardcoded and absent from the player XML. Unlock conditions and the additional rewards use reviewed Repentance achievement records and completion references. Repentance+ may differ.