Production-grade odds engine

Blooket calculator

Space Pack Odds Calculator

Exact drop rates, Legendary & Chroma probabilities, and duplicate refund math for the Space Pack — before you spend a single token.

⚡ Real-time Space odds

📊 20-token verified rates

🎯 Exact binomial calculation

Default pack

Space

Effective cost

7.825 tokens

Last updated

September 9, 2026

The Space Pack is a full-time 20-token market pack with seven rotating Colored Astronaut chromas, with only one active astronaut color available at a time.

Target Pack

Space

500 tokens

Deterministic odds on the main thread, Monte Carlo runs off it.

Tokens

02.5k5k slider max

Dupe refund

Uses the precomputed effective cost of 7.825 tokens.

Epic+ probability

72.3%

At least one Epic, Legendary, or Chroma.

Legendary probability

10.7%

Exact chance of at least one Legendary.

Chroma probability

1.24%

Uses the current community-referenced pack Chroma rate.

Estimated opens

Cost model

20.000 / box

Data freshness

2026-09-09

Full simulation

Runs 5,000 iterations in a web worker and returns only aggregated results.

Based on 18,240 simulations run today

What is the Space Pack?

Understanding the Space Blooket box before you spend.

Space is one of the signature Blooket packs. It mixes four uncommons, two rares, one epic, one legendary, and seven rotating Colored Astronaut chromas. Only one Colored Astronaut is active on a given day, so pack-level chroma math is capped at the live 0.05% rotation rate.

Pack price

20 tokens

Avg sell-back

12.175 tokens

Epic+ per box

5.00%

Legendary floor

1 in 222

Currently available in the live discovery hub.

Duplicate sell-back average sits around 12.2 tokens.

15 blooks are indexed in this pack collection.

Earth · Uncommon · 18.8%

Meteor · Uncommon · 18.8%

Stars · Uncommon · 18.8%

Alien · Uncommon · 18.8%

Planet · Rare · 10.0%

UFO · Rare · 10.0%

Spaceship · Epic · 4.50%

Astronaut · Legendary · 0.45%

Pink Astronaut · Chroma · 0.05%

Yellow Astronaut · Chroma · 0.05%

Black Astronaut · Chroma · 0.05%

Orange Astronaut · Chroma · 0.05%

Red Astronaut · Chroma · 0.05%

Brown Astronaut · Chroma · 0.05%

Green Astronaut · Chroma · 0.05%

Drop rates table

Server-rendered odds for the Space Pack

Official Space Pack probabilities validated against community opening datasets. At 20 tokens per open, selling duplicate Space blooks refunds an estimated 12.18 tokens per pull.

Rarity	Drop rate	Approx. odds	Sell value
Uncommon	75.0%	1 in 1	5 tokens
Rare	20.0%	1 in 5	20 tokens
Epic	4.50%	1 in 22	75 tokens
Legendary	0.45%	1 in 222	200 tokens
Chroma	0.05%	1 in 2,000	300 tokens
Avg duplicate sell-back	100%	Effective open cost: 7.825	12.175 tokens

Source: Blooket in-game pack drop rates + Blooket WikiUpdated: September 9, 2026Per 500 tokens at face price: 25 opens

FAQ

Common questions about Space odds

What are the odds of a Chroma in the Space Pack?

Using the current community-referenced Space Pack table, each box has a 0.05% Chroma rate. At 500 tokens with duplicate refunds off, the exact chance of at least one Chroma is 1.24%.

How does dupe refund work in this Space calculator?

The real-time calculator does not simulate endless duplicate loops. Instead, it uses a precomputed effective cost for the Space Pack. That effective cost is the pack price minus the exact average sell-back value from the current pack table, which keeps calculations instant while still reflecting duplicate refunds.

What are the odds of at least one Legendary from the Space Pack?

This calculator uses exact binomial math, not guesses. At 500 tokens with duplicate refunds off, the chance of at least one Legendary from the Space Pack is 10.7%.

Does the Space Pack calculator use simulation for the main odds?

No. The headline probabilities for the Space Pack update instantaneously using the exact formula P(at least 1 success) = 1 - (1 - p)^n, where p is each Space blook's drop rate and n is your pull count (25 pulls per 500 tokens). Full Monte Carlo simulation only runs when you click the simulate button.

Space Pack Odds Calculator

500 tokens

Understanding the Space Blooket box before you spend.

Server-rendered odds for the Space Pack

Common questions about Space odds

Plan your Space Pack pulls