Up-to April 1st (not a joke) – in anticipation of Half Life: Alyx, the upcoming virtual reality first-person shooter you can download and play all Half-Life games.
Once the 2 months are done you will no longer be able to play them, so enjoy them while you can. These titles will be available for free until April 1st 2020. If you already have Steam installed, you can click the following links to start playing now.
- Team Fortress Classic
- Half-Life
- Half-Life: Source
- Half-Life: Opposing Force
- Half-Life: Blue Shift
- Half-Life 2
- Half-Life 2: Episode One
- Half-Life 2: Episode Two
Half-Life: Alyx is set before the events of Half-Life 2 and the episodes, but the games share characters and story elements.
