The first direct expansion following the events of HL2.
Most FitGirl repacks include a MD5 tool to verify the integrity of the files before installation to prevent errors. Half Life - Source Quadrilogy [FitGirl].zip
The second expansion that concludes the current story arc. The first direct expansion following the events of HL2
Originally popularized by the repacker , this collection is designed to give players the most efficient way to store and install the definitive Valve classics while saving significant disk space. Included Games and Features Half Life - Source Quadrilogy [FitGirl].zip
The "Quadrilogy" typically includes the following titles, all updated to the latest available engine builds as of late 2019:
The original 1998 classic ported to the Source engine. Half-Life 2: The groundbreaking sequel.