I think most scenario players will always download every new scenario that comes out. If and how much they will play them will depend on how good they are. Yeah, so go for it! I always make them primarily for myself anyway for the design and creation challenge. Sod the punters.
They won't pay you, so just satisfy yourself. Enjoy it
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The Historical Civ2 Site
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"The man who can smile when things go wrong has thought of someone he can blame it on" - anon
"Every gun that is made, every warship launched, every rocket fired, signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed" - President Eisenhower