Blooket Glossary
Plain-English definitions for the 5terms that come up most when you're budgeting tokens, planning a chase, or reading another guide on this site. Each entry has a one-sentence answer up top, drop-rate tables, worked math, and a FAQ block for the questions that follow each definition.
Every term, defined.
Ordered by topical proximity, packs and tokens first, then rarity tiers, then the math behind chase planning.
Blooket Packs
A Pack is a token-priced loot box in the Blooket Market. Open one to receive exactly one random Blook, with drop rates determined by the pack's rarity table.
Blooket Tokens
Tokens are Blooket's in-game currency. You earn them by playing game modes (and the Daily Wheel) and spend them in the Market on Packs.
Legendary Blooks
A Legendary is the second-rarest Blook tier in Blooket, rarer than Epic, more common than Chroma, with drop rates between 0.2% and 1% per pack.
Chroma Blooks
A Chroma is the rarest obtainable Blook tier in Blooket. Per-pack drop rates sit between 0.01% and 0.08%, and only specific market packs contain one.
Cumulative Probability
Cumulative probability is your chance of pulling a target Blook **at least once** across N packs. Use the formula `1 − (1 − p)^N`, never just multiply.
When to come back here.
Before reading a guide
Every guide on this site assumes you know what tokens, packs, tiers, and cumulative probability mean. Skim the relevant glossary entry first if any term feels fuzzy.
Before running math
The Cumulative Probability entry covers the formula, the 50/90/99 thresholds, and why 100 packs at 1% isn't a guaranteed pull. Read it once and the calculators stop looking like magic.
Before chasing a Blook
The Legendary and Chroma entries list every obtainable pull at that tier with rates, sell values, and which pack drops them. Use them to choose a chase target before opening packs.