I have a previously unknown prototype for Earl Weaver Baseball on Genesis. Game was never released on any consoles. A few months after this one they moved on to develop a new game "Baseball '93. Also unreleased.
Hard to price an unreleased proto Maybe stick it on eBay at 200 usd and see if it gets any attention Unfortunately sports games are at the low end of the market.....
It's a sports game, which has really low interest. You could crowdfund $300 and release it. Personally I wouldn't pay more than $120 for it, if even.
