What is Portal?

Portal is an innovative puzzle game that equips you with a portal gun, allowing you to create openings between two points in order to solve complex challenges. Combine creative thinking and quick reflexes to harness the game’s unique physics letting you circumvent gravity, slanted surfaces, and devious traps. Explore a world that both challenges your logic and surprises you with humor as you shoot your way through ingenious puzzles in search of the truth behind Aperture Science.

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Unlocking Doors with Cubes

In Portal, you’ll often need to place weighted cubes on large floor buttons to unlock doors and progress to the next chamber. Use your portal gun to transport these boxes across gaps and tricky obstacles, then drop them onto the buttons—once pressed down, the door opens, allowing you to continue your puzzle-solving adventure.

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Harnessing the Energy Pellets

Certain chambers feature bouncing “orbs” (energy pellets) that must be channeled into their corresponding receptacles to unlock the exit. Use your portal gun to create pathways for these pellets, carefully guiding them around corners and through different surfaces. Once the orb makes contact with its receiver, the chamber’s mechanism activates, clearing the way for you to advance.

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Evading the Sentry Turrets

You’ll come across Sentry Turrets that lock onto movement with pinpoint accuracy. Use portals to flank them or drop Weighted Storage Cubes from above to knock them over. By carefully navigating around their line of fire or disabling them, you can safely move on to the next chamber.