Most FitGirl repacks include a MD5 tool to verify the integrity of the files before installation to prevent errors.
Run the setup.exe and select your desired components. Note that installation can take a significant amount of time due to the high level of compression. Half Life - Source Quadrilogy [FitGirl].zip
The first direct expansion following the events of HL2. Most FitGirl repacks include a MD5 tool to
Significantly larger (standard for repacks), often expanding to 10 GB+ depending on selected components. 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: