Where the challenge is: systems — knowing how it works.
How hard is Bridge Constructor Portal?
Where the challenge is: systems — knowing how it works. You get through it by working out what the game is actually doing and coming back with a better build or a better plan, not by faster hands.
Who actually finishes Bridge Constructor Portal
- Xbox0.4%of everyone who owns it on Xbox“Spectacularly Lonely”about 2% 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.
Xbox
Profound Portal ProficiencyFinish every test chamber in Chapter 3 of "Portal Proficiency".0.1%
Convoyability 3030 convoys delivered in the Portal Proficiency initiative0.1%
Criação de Túneis AvançadaFinish every test chamber in Chapter 2 of "Portal Proficiency".0.1%
Convoyability 2020 convoys delivered in the Portal Proficiency initiative0.1%
Tunneling at Full CapacityMaximum amount of portals successfully used in a test run.0.1%
Played Bridge Constructor Portal? 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 Bridge Constructor Portal
Enter the Aperture Science Enrichment Center and experience Bridge Constructor Portal – the unique merging of the classic Portal and Bridge Constructor games.
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.
- Xbox — Microsoft's published rarity percentage across Xbox players.
Percentages are shown exactly as each platform publishes them. Pyroblast does not recalculate them and does not mix player populations together. Data updated .