Half-Life is Valve's 1998 debut science fiction first‑person shooter where you play Gordon Freeman, a physicist caught in a catastrophic experiment at the Black Mesa Research Facility that triggers an alien invasion. You fight through surreal underground corridors, solve environmental puzzles, and use a mix of makeshift and advanced weapons to survive creatures from another dimension while uncovering the conspiracy behind the disaster. The release includes the Uplink mini‑campaign, Steam Deck support, updated graphics settings, new multiplayer maps, and restored goodies.