This content requires the base game Bridge Constructor Portal on Steam in
order to play.

## About This Content
Bridge Constructor Portal receives a fresh DLC as hot as a potato: Portal
Proficiency
Return to the Aperture Science Enrichment Center and experience a brand-new
challenge.
Finally, you are now able to not only construct bridges, but you can even
place portals yourself!
It’s just like the real thing!

Face up to 30 brain-teasing, remarkably unsafe test chambers in three
chapters.
Create insane constructions and decide where to place portals to show if you
really are proficient in working with Portals.
Only the bravest and smartest participants will succeed and receive the Golden
Condolence Letter.

Features
\- New Aperture Science test series with 30 brand new, brain-teasing levels
\- New feature: place the portals in the new test chambers yourself!

Bridge Constructor Portal – Portal Proficiency