The Free version can be downloaded here or on the Unity Asset Store. It is a Unity Package ready to be imported into any project. There are also example scenes in AstarPathfindingProject/Example Scenes.
A* Pathfinding Project (1895)
The Pro version can be bought here using PayPal
Or on the Unity Asset Store (search for it!)




after i download the package and try to import it it says error could not decompress package what should i do?
Can people who bought the Pro version for older versions get the updated pro version or do we have to re-buy it?
People who buy the pro version will receive an email with a download link. This link will always point to the latest version of the project (at least for the 3.x versions).
getting this : Error while importing package: Package has unknown format
Which version of Unity are you using? I haven’t seen that error before, but my guess is that your Unity version is too old. Though it might be that the download became corrupted for some reason, so if you have a relatively new version of Unity, try re-downloading the file.
hi