Learn how to manipulate lasers and time portals to solve complex puzzles in Portal Reloaded. This guide covers Test Chambers 13, 14, and 15, detailing strategies for using reflector cubes and time travel.
This section of the Portal Reloaded walkthrough focuses on the mechanics and puzzles involving lasers and time portals. We will cover Test Chambers 13, 14, and 15, detailing the steps required to solve each chamber using the game's unique mechanics.
| Action | Description |
|---|---|
| Laser Manipulation | Use portals to redirect lasers. Lasers can be moved sideways and into time portals to affect their future state. |
| Time Portals | These portals allow travel to the future or past. Portals placed in the present can be manipulated from the future, and vice versa. Taking damage from a laser can be a method to travel into the future. |
| Reflector Cubes | Cubes used to reflect lasers. They can be summoned from switches and must be positioned correctly to hit receivers or nodes. Moving a reflector cube in the present can affect its counterpart in the future. |
| Particle Fields | These fields can block passage and cancel portals. Time portals can be used to bypass them by moving to a different time state where the field is absent. |
Test Chamber 13:
Start by placing portals as shown in the image. Use a portal to move the laser sideways and a time portal to send it into the future. You may need to take damage from the laser to travel into the future. Once in the future, rearrange portals without affecting the present setup. Position portals so the laser hits the target directly, then proceed through the 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 as shown. Use a portal to bring a laser through the first node, then use the reflector cube to guide it through 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. Ensure the present reflector cube hits all three nodes; adjust as necessary. If you moved the future reflector cube, you may need to return to the future to retrieve it again. Finally, place the future reflector cube at the end of the nodes 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. 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 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 aim at the receiver. Return to the present; the laser should still be hitting the first receiver, powering an elevating platform. Stand on the platform and place a time portal behind the node to raise it, allowing you to summon a reflector cube. Place this reflector cube on the lip above the second receiver. Travel to the future. Retrieve the future reflector cube and enter the laser room. Place a time portal here to bring the future reflector cube into the present laser room. Position it 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. Use portals to bypass the field. Climb the stairs and place a portal on the upper wall to hit the third receiver. Finally, move the reflector cube onto the switch to complete the test chamber.
100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content