Strategy Guide/Walkthrough/FAQ


  • Alternate title screen

    Successfully complete the game to unlock the cake title screen.

  • ApertureScience.com login

    The graffiti in the game are clues for the ApertureScience.com website. Go to the site, and enter "LOGIN" as a command. Enter "CJOHNSON" as a username and "TIER3" as a password. After logging in, type "HELP" for a list of commands. In addition to logging in as "CJOHNSON" (Chell), you can login as anyone desired by typing a username longer than two characters and using "PORTAL" as a password.

  • ApertureScience.com hidden message

    While logged into the ApertureScience.com website, type "THECAKEISALIE" to access a hidden message left by some employees.

  • Completing Chamber 18 easier

    At the end of the advanced map for Chamber 18, you will have the same raised platforms as you did in the normal one except now after you leave the lower one, it falls into the toxic water. This forces you to be more precise with your portal jumps. However, you can get past this easily. Do the platform jumping as usual, but if you miss, just land on the platform you came out of. You should be able to fire an opposite color portal at the wall where you entered this area, allowing you to go back to the start. All the platforms rise again, and the portal is still where you left it. You can now fall into the pit again and be able to portal jump to the next ledge. This take longer but does not require precise timing.

  • Box head pictures

    On the level where you get the companion cube after you run past the energy balls and are in the room with the three elevators, there are two doors leading to a catcher and a platform that is pushed out of the wall. Walk up to the platform that is pushed out. Crouch behind it, and walk through the opening. On the left hand side are a group of pictures of people with boxes for heads and hearts around them.

  • Using cheats and earning achievements

    If the "sv_cheats 1" code is enabled, achievements are disabled; however, there is a way around this. There are a few command strings that can be bind to keys which allow you to enable or disable God mode when desired, get all equipment such as weapons, plus the better portal gun. To do this, use the bind [key] "sv_cheats 1; wait; god; wait; wait; wait; sv_cheats 0" console command. For God mode, use the bind [key] "sv_cheats 1; wait; Impulse 101; wait; wait; wait; sv_cheats 0" console command.

  • Cheat Codes

    Enter the options menu, select "Controls", then "Advanced". Turn on the option for the console. Then while playing the game, press ~ to display the console window. Type "sv_cheats 1" to enable cheat mode. Then, type one of the following codes and press [Enter] at the console window to activate the corresponding cheat function:

    Result Cheat Code
    God modegod
    Take damage, but cannot diebuddha
    No clipping mode noclip
    All weapons, including those from Half Life 2impulse 101
    Enemies do not target you notarget
    Allow separate sets of portals to be created change_portalgun_linkage_id [0-3]
    Allow use of second portal placementupgrade_portalgun
    Portal placement cannot be bumpedsv_portal_placement_never_bump 1
    Portals can be placed on almost any surface sv_portal_placement_never_fail 1
    All challenges completedsv_bonus_map_complete 1
    Spawn citizennpc_create npc_citizen
    Spawn Breennpc_create npc_breen
    Spawn zombienpc_create npc_zombie
    Spawn Bouncy metal ballent_create_portal_metal_sphere
    Spawn Weighted Storage Cubeent_create_portal_weight_box
    Basic portal gungive weapon_portalgun
    Fire an energy ballfire_energy_ball
    Fire rocket from head (glitched)fire_rocket_projectile
    First person viewfirstperson
    Third person viewthirdperson
    Set gravity; "600" is defaultsv_gravity [number]
    Disable cheat modesv_cheats 0

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