Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

The Missing Poster is an unlockable trinket.


  • Removed in Afterbirth If Isaac dies to a Sacrifice Room Sacrifice Room's spikes, a puzzle piece will appear on his last will.
  • Added in Afterbirth Dying in a Sacrifice Room Sacrifice Room while holding it unlocks The Lost The Lost. If The Lost is already unlocked, it instead revives Isaac as The Lost on death, then disappears.


  • Removed in Repentance None of the effects will occur during any Challenges.
  • Added in Afterbirth / Removed in Repentance Resurrection items activate in a set order. Missing Poster has the lowest priority of all / Added in Repentance the second lowest priority of all, with only Tainted Lost Tainted Lost's Birthright Birthright effect being lower.
  • Added in Afterbirth Also works while The Lost The Lost is the one carrying it.
  • Added in Repentance Missing Poster counts as an extra life for Tainted Lost Tainted Lost, rather than respawning him as his non-tainted counterpart.
  • Added in Afterbirth / Removed in Repentance The Lost will not carry Holy Mantle Holy Mantle when revived into this way.
  • If Isaac teleports out of the Sacrifice Room Sacrifice Room before dying, The Lost will not be unlocked.


  • Added in Afterbirth † Gulp! / Marbles Marbles / Smelter Smelter: Missing Poster functions correctly after being consumed, but still disappears after activating.


  • Added in RepentanceBirthright Birthright: The Lost The Lost's Birthright effect will apply after respawning as him, even if Birthright was obtained prior to dying.

Puzzle Pieces[]

  • The puzzle piece will belong to one of four jigsaw puzzles, differentiated by a grey symbol in the corner of each piece.
    • The symbol can either be a pixel, a 2x2px square, a 3x3 px square, or four pixels arranged like a plus-sign.
  • Each jigsaw puzzle displays an altered last will for the characters Isaac Isaac, Magdalene Magdalene, Judas Judas, or Azazel Azazel respectively.
  • There are many puzzle pieces and more details to be found; see here.

In-game Footage[]

Note that this footage only applies to the Rebirth version of this trinket and does not show the changes made to it in Afterbirth.

Unlockable Achievements[]


  • The first scenes in Ending 15 and Ending 17 show The Missing Poster pinned to a utility pole, with a silhouette of Isaac's mother who seems to be searching for Isaac in the background.
  • There are many puzzle pieces in total. Assembling all of the jigsaw puzzles and figuring out what they meant was initially designed to be a collaborative effort of the community. As such, Edmund and Tyrone had openly expressed disappointment towards the datamining.[citation needed]
  • The unlock pop-up of Missing Poster calls it "Lost Poster". Unknown if it's a mistake or a hint.



Note that achievements are disabled when using seeds.

PC Removed in Repentance 38JD 9HNG (Curse Room Curse Room adjacent to spawn)

Switch Hard mode only OBZH H2Y0 (Missing Poster in a Slot Machine in Flooded Caves Flooded Caves II plus a Sacrifice Room Sacrifice Room in Necropolis Necropolis II)