The most advanced platform for building sample instruments – and the first choice for professional audio plug-in developers worldwide.
Link: https://gorilla-engine.com/
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Monthly pricing followed by …. “Transparent pricing” …. followed by absolutely no mention of the pricing!
And no contact information!
Stumbled upon this on another forum.
It seems you need to register “Curious? Register now…”
But when I take a look at it now, it looks like a scam 
No, not a scam, UJAM is legit, I know who they are, and there’s a reference to that tool there. Sounds like hey didn’t really think it through.
FWIW Hans Zimmer is a co-founder of UJAM