Addix is an open source game for the #zxspectrum , #vic20 , #commodore 64 , Plus4/C16, #PET40/80 and #DOS , by SC Forums user orac81:

https://github.com/orac81/miniapples/ra ... latest.zip

(Program and source code are in the folder "addix")

More info:
https://spectrumcomputing.co.uk/forums/viewtopic.php?t=15265

#retrogaming