Here is a home rule version of Purest Essence. Not really a variant, just a slight re-organization with a few home rules added in.
Looking for the Free Microlite20/7x/8x/2020 Rules Downloads?
There are well over 100 free downloads of rules (and more) for Microlite20, Microlite2020, Microlite7x, Microlite 81, and their many variants in the Game Download Library area below. These files can be downloaded without creating a membership on this site.
Complete games based on the Microlite20 system. Some are only slightly longer than the Microlite20 core rules. Others are much more detailed and therefore longer.