Half-Life: Uplink

Half-Life: Uplink is a special standalone version of the 1998 first-person shooter computer game Half-Life. Uplink features many of the common enemies, characters, and weapons from the full game, but the location and scenario in this demonstration do not appear in Half-Life. Like its successor's demo, however, Uplink was made available for download after the release of the full retail version of the game.

The Uplink chapters were made a few weeks after the base game was already released, and roughly fit in prior to or during the Lambda Core chapter. Some segments use audio that was cut from original, while the premise is based on the cut level Communications Center. Uplink also includes the same Hazard Course tutorial from the full release of Half-Life.

Uplink was included with the Game of the Year Edition of Half-Life as a mod, and was included with many subsequent releases. When the series migrated to Valve's own Steam distribution service, Uplink was absent entirely until 17 November 2023, when it was integrated into the Half-Life base game as part of the 25th Anniversary Update.

Uplink was also included with certain video cards as bundled on one disk that also included Team Fortress Classic and Counter-Strike 1.3.

For the PlayStation 2 version of Uplink an NTSC-U/C copy of Half-Life is required, where a code needs to be entered from the cheat codes menu in the options then the PS2's disc tray will open and the Official U.S. PlayStation Magazine Issue 57 disc can be inserted.

Uplink is available in English, French and German.