All Half-Life games now free until Alyx launch

Valve has recently announced that they will br making all previous Half-Life games free to play until Alyx launches.

Half-Life Series Free To Play Ahead Of Half-Life: Alyx Release - GameSpot

Valve makes all Half-Life games free-to-play until Alyx launches - Neowin

Play all the Half-Life games for free right now - MSPoweruser

New Half-Life Alyx gameplay features drones, headcrabs, and lots more

HALF-LIFE Series Goes Free To Play To Promote Launch Of HALF-LIFE: ALYX! — GameTyrant

All Games In The Half-Life Series Are Now FREE On Steam

Half-Life: Alyx is a 'return to this world, not the end of it,' says Valve

Top 10 HALF-LIFE: ALYX Mods + How To Play

Half-Life Alyx mod 'Levitation' adds new story and 5-hour campaign