Seems interesting but my
Java Runtime only recognizes class file versions up to 61.0
Any chance we can have an online version or build instructions?
There was an issue with the .jar build, it should work fine now :)
Unfortunately it would be very difficult to make an online version of the game because of the GUI tools used.
If you want to build the game yourself, you can download the code from GitHub (link in the description) and compile it with a regular Java compiler.