You own Half-Life 2? Of course you do. Then run, don’t walk, to your Steam client and download the new Lost Coast level.

Here are a few words straight from the horses mouth.

Half-Life 2: Lost Coast is now available for play for all Half-Life 2 owners.

Half-Life 2: Lost Coast, a single-player level custom-created to showcase High-Dynamic Range lighting (HDR) in the Source engine, is available now to all owners of HL2. As a technology showcase, Half-Life 2: Lost Coast’s system requirements are very high. During installation, Steam will prompt you if your system does not meet the recommended configuration. We hope you enjoy it.

Gotta go play. Talk to you later.

XOXOXOXO,
A 47 Danger