The installation instructions are a bit misleading. You do get an EXE file for Win here, but you cannot actually run it - unless you have a Java Runtime Environment installed. As I have no intentions to install Java, this means the game sadly remains unplayable for me...
And no, this is not so obvious. Other games being developed in Java get compiled into a stand-alone EXE files for Windows, like
Lilith's Throne. If I download the EXE file there, I can play the game on Win without a JRE.
I think the installation instructions should state clearly that JRE is required to run this. Or better still, provide a compilation into an actual stand-alone EXE for Win.