1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on its way to being named "Best PC Game Ever" by PC Gamer, and launches a franchise with more than eight million retail units sold...
They took away Lost Coast? I know they removed HL2 2D because of some burned in ads but Lost Cost was 100% Valve material.
AFAIK Lost Coast is now included in HL2