Isaac Cheat Sheet

Secret Seed Codes (Rebirth)

In The Binding of Isaac: Rebirth, the seed determines every item, enemy, floor layout and room in the run. You won't be unable to unlock secrets while playing seeded runs, however they allow you to share the seed with your friend and play the same run together.

Rebirth has over 4 BILLION possible seed combinations, however there are 50+ pre-assigned seeds which have unique effects on the game. This page highlights all the secret seed codes which the developers have added to the game and what each seed does.

Note: Seeds are all 8 characters long and all alphanumeric characters are allowed except the letters I, O, U and V, because they look too much like other characters.

Seed Total:

Secret Seed Code Description / Effect Image (Toggle images)
1MNO
BODY
Isaac is completely invisible, however you can still see the light effect surrounding him. The effect of the 1MNO BODY seed
30M1
N1TS
Gives you a hard timer of 30 minutes to beat the game. After 29:45 a timer starts ticking and at 30:00 you will take damage every second. (No image)
ALLE
GR0
Music is permanently sped up. (No image)
ANDA
NTE
Music is permanently slowed down. (No image)
BASE
MENT
Endless run, where every floor is the basement! Due to how the item spawning mechanics work, after the item pool is exhausted, every item will become the Breakfast health up item. The effect of the BASE MENT seed
BL1N
DEYE
Turns all enemies invisible. The effect of the BL1N DEYE seed
BL00
00DY
Increased gore effects when enemies die. The effect of the BL00 00DY seed
B00B
T00B
Applies a filter to the game which makes it look like a CRT television screen. The effect of the B00B T00B seed
BRTL
B0NS
Taking any damage instantly kills you. The effect of the BRTL B0NS seed
BRWN
SNKE
Isaac leaves a trail of poop behind him as he walks. The effect of the BRWN SNKE seed
CAM0
F0ES
All pickups are now covered in a colour similar to the floor, making them harder to see. The effect of the CAM0 DR0P seed
CAMO
K1DD
The player sprite is removed and replaced with a brown coloured shadow which is similar to the floor colour. The effect of the CAM0 K1DD seed
CHAM
P1ON
Turns every eligible enemy into a champion version. The effect of the CHAM P1ON seed
CHRS
TMAS
Gives Isaac a Santa hat! (Same effect as 'H0H0 H0H0' - Added in v1.04) The effect of the H0H0 H0H0 seed
C0CK
FGHT
All enemies have a permanent charm effect and will attack each other if hostile. The effect of the C0CK FGHT seed
C0ME
BACK
Enemies respawn when you leave the room and come back. (No image)
C0NF
ETT1
All enemies have a permanent concussion effect, making them walk around the room dazed. The effect of the C0NF ETT1 seed
C0PY
C0PY
Gives curse of the unknown on every floor. (No image)
D0NT
ST0P
Isaac takes damage if he stops moving. (No image)
DRAW
KCAB
Inverts your movement and firing controls. (No image)
DYSL
EX1C
Ingame text is re-arranged. The effect of the DYSL EX1C seed
FACE
D0WN
All Tarot Cards when picked up are face down so their effect is always unknown. (No image)
FART
SNDS
Does what it says on the tin - Sound effects are replaced with fart noises. (No image)
FEAR
M1NT
All enemies have a permanent fear effect. The effect of the FEAR M1NT seed
FRA1
DN0T
All enemies have a fear effect which turns on and off every few seconds, causing enemies to run away sometimes. The effect of the FRA1 DM0T seed
FREE
2PAY
Starts you with 69 coins and makes it so you have to purchase all of your items and pickups. The effect of the FREE 2PAY seed
HARD
HARD
All damage does 1 full heart for every floor. (No image)
HART
BEAT
The lower your health is, the slower the music is. (No image)
H0H0
H0H0
Gives Isaac a Santa hat! (Same effect as 'CHRS TMAS' - Added in v1.04) The effect of the H0H0 H0H0 seed
KAPP
A
Turns Isaac's sprite grey coloured like the twitch.tv Kappa emote. The effect of the KAPP A seed
KEEP
AWAY
Pickups mimic player movement. The effect of the KEEP AWAY seed
KEEP
TRAK
Removes all parts of the UI overlay, including map, consumable count, health etc. (No image)
K1DS
M0DE
Causes the Player 2 coop baby to be invincible. (No image)
LARG
HET0
Music is permanently slowed way way down (More than the ANDA NTE seed). (No image)
MED1
C1NE
All pill text (names and descriptions) are replaced with ???. The effect of the MED1 C1NE seed
PAC1
F1SM
Enemies and bosses cannot be killed, all doors remain always open and bosses have their health slowly drained. (No image)
PRES
T0
Music is permanently sped up a lot (More than the ALLE GR0 seed). (No image)
PTCH
BLCK
Turns Isaac into a jet black shadow. The effect of the PTCH BLCK seed
SLOW
4ME2
Music speed changes based on how fast you are walking. (No image)
TEAR
GL0W
Tears have a slight glow around them (Hardly noticable unless you have Curse of Darkness). The effect of the TEAR GL0W seed
THEB
LANK
Isaac has no face! The effect of the THEB LANK seed
THEG
H0ST
Every 45 seconds a ticking sound will start and after 5 seconds Isaac takes damage. A reference to when Edmund stated there would be a Spelunky ghost-like mechanic in the game and it was taken out of context by some of the community. (No image)
T1NY
D0ME
Gives Isaac a teeny-tiny head. The effect of the T1NY D0ME seed
T0PH
EAVY
Gives Isaac a HUGE head. The effect of the TOPH EAVY seed
WH0A
WHAT
Isaac, Enemies, Consumables and Items all have a brown filter and blend in with the floor (Similar to CAM0 K1DD / CAM0 F0ES). The effect of the WH0A WHAT seed

Know of any more seeds? Please send them to me!