This cassette is one of 300 produced in 2018 by 100% Electronica.

From the label:

For the 30th Anniversary, 100% Electronica presents "Digital-Dance" on cassette for the first time since 1988!
Our release of Digital-Dance on vinyl last year was one of our most popular releases to date. Since then, it was made clear that demand for a cassette release is strong. So, we have worked closely with the founder of Software to create this reissue, including 2 bonus tracks (Percussion-Island, and Magicians-Song) never before released on cassette.
We hope it goes without saying this release is professionally made, color printed on a grey cassette, and shrink-wrapped.