Steam is offering Half-Life 2, Episodes 1 + 2, for free in celebration of the game’s 20th anniversary until Monday, November 18.

Valve is celebrating Half-Life 2's 20th anniversary with a massive update, a temporary free giveaway of the full game, and a bundle including the two episodic expansions and new developer commentary.

A new Half-Life 2 update celebrating the FPS game's 20th anniversary has arrived, and it's a true love letter to one of the all-time greats.