The early prototype has been playtested and a few of the golden moments I was hoping for have occurred. Players have been excited to play another game after the first one concluded, and many of the games have been within 1 turn of either player winning. One notable game, I had enough income to win on my next turn, but if I didn't my opponent would have it on his next turn. He drew the exact card he needed to destroy one of my Productions, which in turn made me 1 point shy of the 50 I needed, giving him the win. This has given me the confidence to proceed with the idea
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At the moment I have 210 cards designed (minus artwork) between 6 Colors and a White/Colorless. Each color is matched to a Resource which is their guiding theme.
>Food - Yellow
>Iron - Black
>Timber - Green
>Power - Orange
>Knowledge - Blue
>Luxury - Red

And the different card types are:
Resource - Supports Infrastructure / Allows cards of same color to be played
Infrastructure - Supports Production
Production - Provides Revenue / Bonuses
Investment - Additional Revenue / Bonuses
Localities - Supports Infrastructure / Provides Revenue
Event - One time use cards mostly in your benefit
Sabotage - One time use cards mostly against your opponent
Contract - Cards that stay on the field offering persisting effects