Tutorial: Up to Date
How 2 Install Half-Life: Sandbox
Step 1: Download "Half-Life: Sandbox"
Step 2: Extract or move all "sandbox" named files to your Half-Life maps folder (ex: C:\Program Files (x86)\Steam\steamapps\common\Half-Life\valve\maps)
Step 3: Restart steam (Optional)
Step 4: Open Console Command (button is ` (for those who didn't know))
Step 5: type (map Sandbox) and press enter
Step 6: Enjoy!
Now you know how to install Half-Life: Sandbox version 1.0!
