You do not need to re-purchase assets. Once you own an asset, you own it forever (for the same major Unity version, usually).
Once the asset is linked to your account, you must bring it into your specific game project. Open Package Manager : In the Unity Editor, go to Window > Package Manager Switch to "My Assets"
: You cannot download assets without the Unity Editor. Once downloaded, they are usually stored locally in hidden folders (e.g., AppData/Roaming/Unity/Asset Store-5.x on Windows). unity asset store how to download
You can scroll through your library, but if you have a large collection, use the search bar in the top right. Type the name of the asset you want to download.
If you purchase:
You will break existing imports. Use Unity's Package Manager to remove or update assets.
If you are working with a team, you might need to share assets without everyone having to purchase them individually. You do not need to re-purchase assets
In this comprehensive guide, we will walk you through every method of downloading assets, how to import them into your projects, troubleshooting common errors, and best practices for organizing your game development workflow.