First of all, the source port of Shadow Knights now has its own entry on the Projects page.
With that out of the way: I've started work on a map editor for Shadow Knights called SKE (Shadow Knights Editor), which will be released as freeware. The editor is being developed in C++23 using wxWidgets. SKE is based on The Pushing Point Editor, mainly because I know how long it takes to build a map editor completely from scratch, and I'd rather focus my time on finishing the game's source port.
Anyway, here's a screenshot showing the editor in its current state: