Half-Life 2: Lost Coast - is an add-on to the game Half-Life 2 (additional level), which is also distributed as a separate game.

Unlike the Half-Life 2 game itself, this application uses the updated Source engine with significantly improved graphics. Actually, this game was created mainly to demonstrate the advantages of the new engine.

According to the plot, the main character (Gordon Freeman) comes to his senses on the seashore. His task is to destroy the position of the Alliance located in a nearby settlement, from which rockets are being fired.