Half-Life 2: Episode Two is the second installment in Valve Corporation's series of episodes for the computer game Half-Life 2. Continuing with Valve's method of orienting each episode around a particular theme or set of technologies, Episode Two focuses on expansive environments, travel and nonlinear play and following the closing events of Episode One it sees Gordon Freeman and the series' other major players moving away from City 17 to the surrounding wilderness.
The first two episodes of Half-Life 2 were developed concurrently by separate teams. This episode was released in a bundled package: The Orange Box shipped for the PC, the Playstation 3 and the Xbox 360 and contains Episode Two, Portal, and Team Fortress 2, in addition to Half-Life 2 and Episode One. The package is available at retail stores and through Steam (Valve's content delivery system) for direct download. A retail copy of Episode Two is available only in Russia. (Wikipedia)
Cheats Modify your existing Half-Life 2: Episode Twoep2cfgconfig.cfg and change con_enable to "1" to enable the console if it's not already altered. While you are there, check which button is bound to the toggleconsole command and press this button once you get into the game in order to access the console. The key is probably `. Once in the console, type sv_cheats 1 to enable cheat mode. Once cheat mode is enabled, the game will allow you to use the developer's official cheat codes and the debug menu (SHIFT + F1).