City 17 is destroyed, but the Combine aren’t giving up. Neither is Gordon Freeman.
With humanity scattered, alien forces continue their fight for control over Earth. Physicist Gordon Freeman and Alyx Vance must work to intercept a Combine transmission and reunite with rebel forces before humanity is destroyed.
Like previous installments in the series, Episode Two is very much a thinking person's shooter. Not only is the game filled with physics-based puzzles… but battles often require as much ingenuity as they do fast reflexes.
—The New York Times
Episode Two not only is more ambitious with its level design, but more riveting in its plot. …Completing the game is as rewarding as it should be.
The setting for most of your previous adventures is nothing more than a smouldering scar on Episode Two's skyline and the Citadel looks like a long-finished game of girder-Jenga. …Episode Two feels wild, dangerous and cool.