Power Drills

Navigate Test Chambers 13, 14, and 15 in Portal Reloaded using lasers and time portals. Learn how to redirect beams and manipulate time to solve these challenging puzzles.

This guide covers Test Chambers 13, 14, and 15 of Portal Reloaded, focusing on the use of lasers and time portals to solve puzzles.

Test Chamber 13: Place portals as shown in the image to redirect the laser. Use a time portal to move the laser into the future. You may take some damage to travel into the future. Once in the future, rearrange portals to direct the laser into the target. Head through the door.

Test Chamber 14: Start by taking a time portal to the present. Summon a reflector cube and position it as shown. Use a portal to bring a laser through the first node, then reflect 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 passes through the node. Retrieve the reflector cube from the future and bring it to the present via a time portal. Adjust the reflector cube in the present to hit all three nodes. Return to the future to retrieve the future reflector cube. Bring it to the present and position it to reflect the laser into the receiver, completing the chamber.

Test Chamber 15: Begin by passing 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 reach the future, bypassing the particle field. Proceed 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 to direct the laser to the first receiver. Travel to the future and place a portal on the small wall in the laser room to aim at the receiver. Return to the present. An elevating platform near the switch will power up. Stand on it and place a time portal behind the node to raise the platform further, allowing you to summon a reflector cube. Place this 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 through the node and into the second receiver. To bypass the particle field, use a portal on the other side or a time portal. Reach 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 test chamber.