ok, was jetzt neu für mich war, folgende Antworten von rpgmaker.net:

Zitat Zitat von BadLuck
Unless they explicitly changed the terms of using their graphics (and I'm fairly certain they haven't), REFMAP resources are free to use in commercial projects, as well as modifying them. Their old official site specifically said all you had to do was give them credit, and not sell the graphics themselves, and they were otherwise free to use.
Zitat Zitat von luiishu535
Yeah, REFMAP stuff is definitely free to use in commercial games as long as you give proper credit.
Congratulations on getting greenlit! I've played the original a little bit and am curious to see how the game's evolved after all these years.
Falls Ara Fell Greenlight bekommt, wäre das dann also der Hinweis an alle, dass Refmap Spiele, wenn alle anderen Ressourcen legal sind, verkauft werden können