Not mentioned in the announcement, but in fact both are also included in the "FREE to play" promo. https://store.steampowered.com/app/50/HalfLife_Opposing_Forc

Not mentioned in the announcement, but in fact both are also included in the "FREE to play" promo. https://store.steampowered.com/app/50/HalfLife_Opposing_Force/ https://store.steampowered.com/app/50/HalfLife_Opposing_Forc... https://store.steampowered.com/app/130/HalfLife_Blue_Shift/ https://store.steampowered.com/app/130/HalfLife_Blue_Shift/