Sorry, but no. A publisher bought the rights to the game, so I'm not at liberty to let people use the game in that fashion.
Why, what were you looking to do with it? Maybe I can help you with something similar.
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Ah, I see. Well, I do have a simple RPG system that I've released under Creative Commons which you could use if you're okay with using CC licensed stuff. You can check it out here: https://lonespelunker.itch.io/fafo
It's about pushing your luck and trying to avoid suffering the consequences of doing so, so maybe it would work for a kind of narrative-driven PC RPG. Be sure to take a look at the sample adventures, because those would probably be a good guideline for how a FAFO-based PC RPG would be organized narratively.
If you end up using it in a game, be sure to drop me a line and I'll send out a message to my followers about it.
Good luck with your project!