<Ivor>
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It looks too difficult, and it won't be easy to develop it further.
Is it difficult to create or difficult to learn?
If it's the first, then creating a good fix is difficult in itself.
If it's the second, then it all depends on the result – whether it would be worth learning.
The same can be said about promotion. If the gameplay turns out to be interesting, there will be those who want to play. Or do you expect a world championship right away?
What is really difficult is to predict the result in advance without trying. And playing one game for 10 hours is also difficult.