Portal
Overview
Portal is a first person puzzle game set in the aperture science computer aided enrichment center, you play as Chell a "mute lunatic", with as GLaDOS the games antagonist. you are tasked with puzzles using several different game mechanics from simple box/button tasks to propelling yourself by jumping into a portal and flying out of another.
Troubleshooting
Game crashes after seeing or going through a portal:
Make sure you are running Portal in DirectX 9 or higher. Trying to run the game in DirectX 8.1 will cause the game to crash when a portal appears.
Console Commands
Games running on the source engine can utilize Source engine console commands for various tasks.