Special Item

Special items are items in the game that are considered stronger than normal by the developers. If the player sees a special item, even if the player has Curse of the Blind, subsequent special items have a chance of being re-rolled rather than being presented to Isaac, decreasing the likelihood of obtaining multiple special items on one run.

The list of special items is as follows:

a\}\} Afterbirth	Rebirth
Brimstone D100 The D6 Dr. Fetus Epic Fetus Godhead The Ludovico Technique Mom's Knife Mutant Spider Polyphemus Pyromaniac Sacred Heart	Brimstone D100 The D6 Dr. Fetus Epic Fetus Godhead Lil Brimstone The Ludovico Technique Mom's Knife Mutant Spider Polyphemus Pyromaniac Sacred Heart Soy Milk Stop Watch

Special Item Generation

When Isaac enters a room with an item in it, items are selected out of certain item pools depending upon the current room. Special items have a chance of being re-rolled depending on how many special items have been seen during the run:

Number of Special Items Seen	Re-roll Chance
0	0%
1	50%
2	90%
3	98%
4 or more	99%

Notes

• Isaac's The D6 doesn't count as a "seen" special item, as it is directly given to him when the run starts.
• Special items given by the D4, the D100, 1-pip Dice Rooms, and 6-pip Dice Rooms count as "seen" special items.
• Due to the nature of special items, it can sometimes require hundreds of The D6 rolls for special items that are not in the Treasure Room pool to appear. (Note that with infinite rolls, it is always possible to see a special item as long as it is not already removed from the pools.)

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