We should write a strategy guide to sell for when the game is released.
It probably won't be any worse than say, This one 


Book Description
BradyGames’ Civilization IV Official Strategy Guide includes:
*
Features a complete listing of City Improvements, Military Units and Wonders of the World.
*
Comprehensive coverage of the Research Tree, detailing each Scientific Advance.
*
Achieve global domination through Cultural, Economic, Military or Scientific means.
*
Strategies for building empires for both single player and multiplayer games!
# Paperback: 208 pages
# Publisher: Brady Games (November 8, 2005)
BradyGames’ Civilization IV Official Strategy Guide includes:
*
Features a complete listing of City Improvements, Military Units and Wonders of the World.
*
Comprehensive coverage of the Research Tree, detailing each Scientific Advance.
*
Achieve global domination through Cultural, Economic, Military or Scientific means.
*
Strategies for building empires for both single player and multiplayer games!
# Paperback: 208 pages
# Publisher: Brady Games (November 8, 2005)
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