Cuphead Achievement Data — Unlock Rates for All 42 Achievements
Using Valve's published global achievement unlock rates to organize the difficulty distribution. Data retrieved: August 16, 2026
How to read these numbers
These figures show what percentage of actual players unlocked each achievement as a factual measure. They offer an objective guide to difficulty. The median is 9.6%, with 22 of 42 achievements below 10%. The distribution suggests that progression itself is a hurdle, matching the game's reputation as a difficult boss rush.
42
Total achievements
5
Unlock rate of at least 50%
22
Unlock rate below 10%
2.8%
Rarest achievement's unlock rate
- ▸ Most commonly unlocked achievement: 76.6%
- ▸ Median unlock rate: 9.6% (half of all achievements are at or below this rate)
- ▸ Unlock rate of at least 20%: 12 achievements / Below 5%: 9 achievements / Below 1%: 0 achievements
These are the achievements highlighted by the official Steam store. They are a selection from the full set of 42 achievements.
Q. How many achievements does Cuphead have?
42, according to the official Steam store listing used by the Japanese source. Steam highlights 10 of them as featured achievements, which are listed on this page.
Q. How many players have earned the rarest achievement?
The lowest achievement unlock rate is 2.80%. The most commonly earned achievement has a rate of 76.6%. 22 achievements have unlock rates below 10% (Valve's public data as of August 16, 2026).
Q. Is earning every achievement realistic?
The median unlock rate is 9.6%, and 9 achievements have rates below 5%. Start with the 5 achievements with unlock rates of at least 50% for a more manageable goal.
Q. Where do these numbers come from?
Valve's public global achievement unlock rates (Steam Web API) and achievement information from the official Steam store. They do not include estimates by this site. Individual achievement unlock conditions are omitted until a reliable source is available.