Weapons & Tools

Navigate and solve Test Chambers 13, 14, and 15 in Portal Reloaded using lasers, time portals, and reflector cubes. Detailed walkthrough for each chamber.

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

• Test Chamber 13: Use a portal to redirect a laser sideways and a time portal to move it into the future. Travel through the time portal to reach the future, rearrange portals to direct the laser into the target, and exit the chamber.
• Test Chamber 14: In the present, summon a reflector cube and position it to direct a laser through the first node. 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. Position the present reflector cube to hit all three nodes. Travel back 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: Start by going through a particle field. Place a portal where the laser hits the wall and a time portal on the opposite wall. Travel through the time portal to bypass the particle field in the future. Return to the present using another time portal to be on the other side of the field. Place a portal to direct the laser to the first receiver. Travel to the future and place a portal to shoot the receiver. Return to the present, use the elevating platform, and place a time portal behind the node to raise the platform further, allowing you to summon a reflector cube. Travel to the future, retrieve the future reflector cube, and bring it to the present. Position it to reflect the laser to the second receiver through the node. To bypass the particle field again, use a portal on the other side or a time portal. In the present, on the other side of the particle field, climb 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.