Portal: Still Alive


 * Not to be confused with Still Alive (song), a song from the original game.

Portal: Still Alive is the port of the original Portal game on Xbox 360. It was exclusively released on Xbox Live Arcade on October 22, 2008. It contains the original story of Portal developed by Valve, 14 new bonus test chambers modified from the Portal: The Flash Version MapPack created by We Create Stuff, and 9 new achievements (12 total). There are no additional story-related levels.

Portal: Still Alive has not yet been released on PC, although an unofficial mod is available which includes ported versions of all the bonus chambers. It also has some other maps such as:
 * GLaDOS Voice Map
 * Cut Ending Mockup
 * Full port of Portal: The Flash Version mappack
 * Challenge maps

Mechanics

 * Electricity Fields
 * Hard Light Bridges
 * Laser Fields
 * Skull Cubes
 * Crushers

Development history
As some anonymous Valve developers say, every Portal: Still Alive bonus level is inspired by the Portal: The Flash Version map pack levels which were made by WeCreateStuff. Some game mechanics which were seen in the official Portal game trailer were implemented in the Still Alive expansion pack, such as the Crusher (a whole chamber's part took direct inspiration from the Crusher level in the trailer). The levels are not canon to the story of the first game. Some rumours surfaced that a second expansion pack was in the works but the rumours were quickly debunked.