Where the challenge is: execution — reflexes, timing and precision.
How hard is Black Mesa?
Where the challenge is: execution — reflexes, timing and precision. You get through it by getting better at playing it — dodges, parries, muscle memory — not by turning up with a smarter build.
Who actually finishes Black Mesa
- Steam2.5%of everyone who owns it on Steam“The Plan”about 4% of the ones who actually played it
Same game, three different crowds. Steam, PlayStation and Xbox each work these percentages out from their own players, so the numbers move around while the game stays exactly the same. A lower number doesn't mean it's harder on that platform.
Rarest achievements
Published rarity by platform.
Steam
Pepperoni Precipitation2.0%
Prolific PopperKill all Protozoans in the Borderworld.2.0%
Post-Mortem IntervalFind each member of the missing research teams.2.1%
The Rarest Specimen2.1%
Unquestionably Ethical2.4%
Played Black Mesa? See how many of these you've got.
- Which ones you've earned — and which you're missing
- Your rarest unlock, and where it ranks
- Your whole history for this game, on one timeline
- Steam, PlayStation, Xbox and Battle.net in one place
Free. Takes about a minute.
About Black Mesa
Relive Half-Life.
How rarity is calculated
Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison.
- Steam — Valve's published global unlock percentage across Steam owners of the game.
Percentages are shown exactly as each platform publishes them. Pyroblast does not recalculate them and does not mix player populations together. Data updated .