Layer Store HELP
FAQ

Does the 2D Character pack include Spine source files?

Some current 2D Character packs include Spine source files, which can be used to add skins, customize animations, or extend the character design. Inclusion can vary by product and version, so verify the Included formats and package contents on the exact product page before purchasing.

Install the Spine-Unity runtime version that matches the exported Spine data and your Unity project. Use the official Spine-Unity download page rather than a dated runtime package link, then follow the guide included with the asset.