Isaacle

Hundreds of items, one answer a day. Isaacle checks each guess against the hidden Binding of Isaac item on several traits and colors the matches.

Traits worth reading first

Trait	Why it helps
Quality	Separates weak items from top tier ones
Item pool	Tells you where the item drops
Type	Passive, active and so on
Release	Which version of the game added it

For long time players

If you have hundreds of hours in the game, try Hard Mode. The traits still help, but you will lean more on memory of pools and unlocks. Players newer to the game can keep the hints in mind, since they arrive after four tries and can save a long run.

Hard Mode is a setting, so you can turn it off again.

Before you start Isaacle

Quality and item pool split the list fast. Start with an item whose pool you know well.
Release tells you which expansion the item came from, which rules out many at once.
Check the setting for Repentance+ items so the pool matches the version you know.
Colors are an underrated trait. Picture the item's sprite and you can rule out a lot.
Trinkets mode draws on a smaller list than items, so it is a kinder place to start.

Playing Isaacle step by step

Pick a mode
Classic uses items. Trinkets uses trinkets. Infinite lets you keep playing.
Guess an item
Type an item name and choose it from the list.
Read the traits
Each trait shows as correct, partial or wrong compared with the answer.
Use the hints
After four guesses, hints open up to help you finish.