Portal: Still Alive was announced as an exclusive Xbox Live Arcade game at the 2008 E3 convention. It features the original game, 14 new challenges, and new achievements. The additional content was based on levels from the map pack Portal: The Flash Version created by We Create Stuff and contains no additional story-related levels.

The game primarily comprises a series of puzzles that must be solved by teleporting the player's character and simple objects using "the handheld portal device", a device that can create inter-spatial portals between two flat planes. The player-character, Chell, is challenged by an artificial intelligence named GLaDOS (Genetic Lifeform and Disk Operating System) to complete each puzzle in the Aperture Science Enrichment Center using the portal gun with the promise of receiving cake when all the puzzles are completed. The game's unique physics allows momentum to be retained through portals, requiring creative use of portals to maneuver through the test chambers. This gameplay element is based on a similar concept from the game Narbacular Drop; many of the team members from the DigiPen Institute of Technology who worked on Narbacular Drop were hired by Valve for the creation of Portal.

Platform

Xbox 360

Developer(s)

Valve Corporation

Publishers(s)

Microsoft Game Studios

Genres(s)

NA Release Date

October 22, 2008

MVGL User Score

8.3 by 129 user(s)

MVGL Difficulty

2.5000

Composer(s)

-

Added by

167 User(s)

This game also exists on:
Xbox One Xbox Series X/S

Coming soon...