Hello, to anyone having a problem importing the the zip into [ProjectRoot]/Packages - create a new folder and unzip it here.
For me this worked: [ProjectRoot]\Packages\SuperTiled2Unity\.
I'm on Unity 6.
It's easier than that!Open Package Manager -> Click + -> Install from disk -> Choose package.json from extracted folder
Unfortunately, it only throws an exceedingly large amount of errors for me. All the namespaces are missing basically.
