Portal 2 Chapter 1 Test Chamber 1

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Portal 2 Chapter 1 Test Chamber 1
sp_a1_intro2.bsp Portal Carousel

Chamber number 0.pngChamber number 1.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 0.pngChamber progress 1.pngChamber progress slash.pngChamber progress 1.pngChamber progress 9.png

Portal 2 Chapter 1 Test Chamber 01.png
Chamber icon cube dispenser.pngChamber icon cube button on.pngChamber icon cube hazard.pngChamber icon player button.pngChamber icon water hazard.png
Chamber icon fling enter.pngChamber icon fling exit.pngChamber icon turret hazard.pngChamber icon dirty water.pngChamber icon blades hazard.png

This is the second level of the game, and introduces the concept of controlling Portals with Switches. This level takes place within a dilapidated Test Chamber, and allows the player to control the location of a Portal using a Switch. Activating and using the Portals in the correct order allows the player to enter the Chamberlock and move deeper into the Facility.





  • Complete the decayed test shaft (Test Chamber 01)


  • None


  • Aperture Science Enrichment Center
  • Test Chamber 01 (Dilapidated)


  • Overgrown


  • Jump into the pit and activate the button when prompted; a blue portal will open. Turn around to face the starting ledge to see an orange portal.
  • Walk through the orange portal and pick up the Weighted Storage Cube, bring the cube back to the central area.
  • Press the button opposite the first button to open a different portal. Take the cube through the orange portal and place it on the Heavy Duty Super-Colliding Super Button, then return to the central area.
  • Press the remaining button to open another portal. Walk through the orange portal and through the Chamberlock.

Video walkthrough

Download Download demo file



Main article: Portal 2 soundtrack

Overgrowth by Aperture Science Psychoacoustics Laboratory [2:50] | Download Download | Play icon.png Play