The Asset StoreA growing library of free and commercial assets created by Unity and members of the community. Offers a wide variety of assets, from textures, models and animations to whole project examples, tutorials and Editor extensions. More info
See in Glossary supports packages in the asset packageA collection of files and data from Unity projects, or elements of projects, which are compressed and stored in one file, similar to Zip files, with the .unitypackage extension. Asset packages are a handy way of sharing and re-using Unity projects and collections of assets. Glossary supports packages in the asset packageA collection of files and data from Unity projects, or elements of projects, which are compressed and stored in one file, similar to Zip files, with the .unitypackage extension. Asset packages are a handy way of sharing and re-using Unity projects and collections of assets. More info
See in Glossary (.unitypackage) format, and in the Unity Package Manager (UPM) format. The UPM packageA Package managed by the Unity Package Manager. Refer to Packages.
See in Glossary publishing workflow is currently a beta workflow for approved developers who want to publish free packages.
Both package types have their advantages, as follows:
Both workflows require you to create an Asset Store publisher profile before you can publish your package to the Asset Store.