Half-Life 2 - PC Sequel to the hit first-person shooter Scientist-with-a-crowbar Gordon Freeman joins a ragtag human resistance fighting extradimensional invaders for the survival of a conquered Earth Unnervingly realistic graphics the likes of which have not been witnessed outside of a motion picture or pre-rendered cut scene Realistic physics: objects have varied and appropriate mass, density, physical properties For 1 player Sequel to the hit first-person shooter Scientist-with-a-crowbar Gordon Freeman joins a ragtag human resistance fighting extradimensional invaders for the survival of a conquered Earth Unnervingly realistic graphics the likes of which have not been witnessed outside of a motion picture or pre-rendered cut scene Realistic physics: objects have varied and appropriate mass, density, physical properties For 1 player