In-game pickup line
“Free goodies!”
Mechanics
What Lucky Sack does
- Entering a new floor spawns a sack pickup in the starting room.
- Opening it gives the usual assortment of sack resources.
Achievement #553
How to unlock it
Defeat Mother as Tainted Cain.
Unlocking an item and finding it during a run are separate steps.
Explore more unlocksIn a run
Practical note
Keep the trinket through the descent to claim another sack on the next floor.
Reference
Game data and sources
The trinket ID, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ.
