Guide to Portal's Test Chamber 10 (TC10), focusing on mastering momentum and flinging mechanics with step-by-step instructions and developer commentary.
Walkthrough
- 1Head through the hallway. The AI will reiterate warnings about momentum.
- 2Walk down the hallway to find a Commentary Node.
- 3Look up and to the left to find the Camera Shy achievement target on the wall. Shoot it.
- 4Shoot a portal at the ground and jump into it. You will be propelled onto a platform.
- 5Enter the next room. Once inside, look to your left for another Commentary Node.
- 6Walk forward a bit, then turn around. You'll see a small platform with a portal on it.
- 7Run to the ledge ahead, shoot a portal at the ground below it, and jump off the platform into the portal to be rocketed to the far ledge.
- 8The AI will comment on your understanding of momentum.
- 9Go through the next doorway. Look up to see a T-shaped slab of wall emerge.
- 10A Commentary Node will appear near this slab.
- 11Go to the ledge but do not jump off. Look down to see an orange portal.
- 12Turn around and look at the slab. Shoot a portal near its center.
- 13Jump down and through the orange portal to land on a lower ledge.
- 14Turn around to see the top of the slab has moved. Shoot a portal at this newly moved piston.
- 15Walk to the ledge, jump off, and aim for the orange portal. You will be rocketed to the chamberlock.
- 16Enter the chamberlock to complete Test Chamber 10.
Tips
- The Camera Shy achievement is obtained by shooting a target on the wall while standing in front of the stairs in TC10.
- The game explicitly teaches the "flinging" mechanic, where falling into one portal causes you to rocket out of another, by using visual cues like pushed-out concrete blocks above pits.
- Developer commentary highlights the challenges in teaching momentum and the design choices made to guide players, such as moving portal surfaces.
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