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Valve has confirmed, the series of games are now free-to-play on Steam until March 2020.
The following titles are free to play:
The following titles are free to play:
- Half-Life: Source
- Half-Life Deathmatch: Source
- Half-Life: Blue Shift
- Half-Life: Opposing Force
- Half-Life 2
- Half-Life 2: Episode One
- Half-Life 2: Episode Two