Rules on Github:
https://github.com/penta-jan/Pentagame-Rulesheets
Includes .eps
CC-BY-NC 3.0 DE
Nikky's browser version:
https://nikky.crew.c-base.org/pentagame/
Make your own game - here are the files.
Published under CC-BY-NC
https://github.com/penta-jan/PENTAGAME_2019_FINAL