Hopefully this clears it up:
Games with sources:
https://www.scirra.com/store/games-with-source
These capx files are for learning from only. You are not allowed to cut+paste anything from these files to your projects, but they are offered as a learning/educational resource to help you make similar games.
Game templates:
https://www.scirra.com/store/royalty-fr ... -templates
These are royalty free. You can use the capx and add to it to make your own game, no royalties from anyone required. However, bear in mind you don't own the copyright to what you buy but simply have a royalty free license to use this content.