This game is also available on Xbox 360.
Retro Game Cheats for Portal (PC Games)
Effect: Place portals anywhere
When:
during game
How:
press ` and enter sv_portal_placement_never_fail # (# being a 1 or 0)
Submitted By:
Effect: Create a Weighted Storage Cube
Effect: invincibility
Effect: Lets you go through walls and fly around
Effect: Turns cheats on or off
When:
during game
How:
press ` and enter sv_cheats # (# being a 1 or 0) (1-on, 0-off)
Submitted By:
Effect: Fires a rocket
Effect: Lets you change the gravity in the game
When:
during game
How:
press ` and enter sv_gravity # (where # is a number of your choice(600=normal))
Submitted By:
Effect: Fires an energy ball