So, if you pretend that a general Java developer is a piece of hay. There is a pretty giant stack of hay in the world. Millions and millions of pieces in this giant barn-sized hay stack.
-an experienced Java developer (limited to maybe a quarter of the hay)
-that has experience in game programming (even further limited)
-is not too busy doing successful well-paying Java work to work on your project (now we’re down to maybe a bucket full of hay.)
-is not passionate about any of their own game ideas or is pessimistic about their own ability to complete those ideas (number is getting really small now)
-is willing to cede most of the creative control to others… (now we’re down to a handful of very specific needles… made of exotic metals but otherwise looking like every other needle).
The problem is that you are looking for these needles in a needle stack and not a hay stack. (You are limiting your search to people who already tick enough of the boxes to be very rare.)
You are EXTREMELY unlikely to find a creative, but not too creative, experienced, but not too experienced, game developer but not too much of a game developer, here that isn’t already working on at least one passion-project and thinking about their next five.
You need to cast your net in the giant world-wide hay stack instead of limiting it to this niche area of coders that is very unlikely to match all of those requirements.
Then if you like to cover all of your bases, link to that post here in this needle stack.