That is the strange thing - I claimed it a while ago - I have the file, I posted a rating, but now when I log in itch it does not give me the button "download" like for example on the space-combat engine. This is very strange... Maybe you made it free at some point and I got it back then - just download button. I cannot remember... By the way sorry for the stupid question but can you please tell me how to import or open .yymp files in GMS2. Thank you for your time and your work!
Sorry to hear you are unable to download it directly. If you send an email to info@hendracle.nl I can wetransfer the files to you.
For importing a package you can navigate to tools > import local package (.yymp(s) files). A yymp/yymps file is basically a little folder of gamemaker assets that you can import into any project.
