Tactical Gear

Navigate Test Chambers 13, 14, and 15 in Portal Reloaded using lasers and time portals. Learn how to manipulate lasers with reflector cubes and time travel to solve complex puzzles.

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

Test Chamber 13

Begin by placing portals as shown in the image. Use a portal to redirect the laser sideways and a time portal to send it into the future. You may take some damage from the laser to enter the future. Once in the future, rearrange the portals so the laser directly hits the target, allowing you to proceed through the exit door.

Test Chamber 14

First, use a time portal to return to the present. Summon a reflector cube from the central switch and position it in the designated area. Use a portal to direct a laser through the first node, then use the reflector cube to guide 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. Adjust the present reflector cube to hit all three nodes. If necessary, return to the future to retrieve the cube again. Finally, place the future reflector cube to reflect the laser into the receiver, completing the chamber.

Test Chamber 15

Start by passing through the particle field on 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 so the laser hits the first receiver. Travel back to the future and place a portal on the small wall in the laser room to direct the laser into the receiver. Return to the present. The laser should still be hitting the upper receiver, powering an elevating platform. Stand on the platform and place a time portal behind the node to raise it 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 back to the present by placing a time portal in the laser room. Position the cube to reflect the laser into the second receiver through the node. To proceed, you need to be on the other side of the particle field in the present. Climb the stairs and use a portal on the upper wall to hit the third receiver. Move the reflector cube onto the switch to complete the test chamber.