How can I make a mod?

How can I make a mod?
Creating a mod manually

Create a folder under steamappsSourceMods (A mod can actually reside anywhere, but placing it here allows Steam to detect and launch it.)
Create a gameinfo. txt in the folder.
Open the SDK launcher and switch to the relevant engine branch.
Choose “Edit Game Configurations” and click “Add”.

Creating a mod manually
  1. Create a folder under steamappsSourceMods (A mod can actually reside anywhere, but placing it here allows Steam to detect and launch it.)
  2. Create a gameinfo. txt in the folder.
  3. Open the SDK launcher and switch to the relevant engine branch.
  4. Choose “Edit Game Configurations” and click “Add”.
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