Master Test Chambers 13, 14, and 15 in Portal Reloaded by learning how to strategically use portals and time portals to redirect lasers and solve complex puzzles.
Walkthrough
- 1Test Chamber 13: Place portals as shown in the image. Use a portal to move the laser sideways and a time portal to send it into the future. Travel through the time portal. Rearrange portals in the future so the laser hits the target.
- 2Test Chamber 14: Travel to the present via a time portal. Summon a reflector cube and position it as shown. Use a portal to bring a laser through the first node, then use the reflector cube to direct it into the next two nodes. Travel to the future. Use portals to bring a laser into the present through the time portal, ensuring it hits the node. Retrieve the reflector cube from the future and bring it to the present via a time portal. Position the present reflector cube to hit all three nodes. Travel back to the future to retrieve the future reflector cube if needed. Place the future reflector cube at the end of the nodes to reflect the laser into the receiver, completing the chamber.
- 3Test Chamber 15: Go through the particle field to the left. Place a portal where the laser hits the wall and a time portal on the opposite wall. Travel through the time portal to the future to bypass the particle field. Head to the other side of the room and use another time portal to return to the present, now on the other side of the particle field. Place a new portal on the upper wall so the laser hits the first receiver. Travel to the future and place a portal on the small wall in the laser room to shoot the receiver. Return to the present. The laser should hit the first receiver, powering an elevating platform. Stand on the platform and shoot a time portal behind the node to raise the platform further, allowing you to summon a reflector cube. Place the reflector cube on the lip above the second receiver. Travel to the future. Retrieve the future reflector cube and bring it to the present via a time portal in the laser room. Position it to reflect the laser to the second receiver through the node. To reach the other side of the particle field without going through it, use a portal or a time portal. In the present, on the other side of the particle field, climb the stairs and use a portal on the upper wall to hit the third receiver. Finally, move the reflector cube onto the switch to complete the chamber.
Tips
- In Test Chamber 13, you can take some damage from the laser to travel into the future.
- In Test Chamber 15, ensure you are on the correct side of the particle field in the present before attempting to hit the third receiver.
- Pay close attention to the placement of reflector cubes and portals in Test Chamber 14 to ensure all nodes are activated.
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