Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
Pretty sure when Orange Box was released, it included HL2 and HL2 Episode 1 in addition to HL2 Episode 2. Hard to remember because there were so many good games that came from that one purchase.