Isaacle

Isaacle is a daily guessing game about The Binding of Isaac, the roguelike by Edmund McMillen. Each day it picks one item from the game, and your job is to work out which one from a series of guesses. When you guess an item, the game lines it up against the answer and shows how they compare on a set of attributes: its quality rating, its type, which item pool it appears in, its description, its colours, how it is unlocked and the expansion or DLC it was added in. Matching attributes are marked so you can narrow down the answer.

The standard Classic mode gives you up to twelve guesses. Alongside it there is a separate daily Trinket puzzle that works the same way, and an Infinite mode (in beta) for playing round after round rather than waiting for the next day. The daily item and trinket are the same for everyone and reset on Pacific time.

Because the clues lean on item quality, pools and unlock conditions, it rewards deep familiarity with the game's hundreds of items rather than casual knowledge. It suits Binding of Isaac players who know the item roster and enjoy a daily test of it.

The site is free to play in the browser and shows ads, and it is made by the same team behind other daily guessing games such as Nookle.