MapFinder is a program that allows you to set a game up using your desired settings (map type, size, speed, civ, opponents, etc.) and generating maps based off of a ruleset you have created to locate and save maps with a specific amount of certain features (terrain types, resources, commerce, food, etc.)
As a new player to the HOF and having just finished figuring out, in part the Map Finder, may I suggest the above is not enough for new users of the finder. I would like to suggest something like the following:
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When you start a game of Civilization, sometimes the initial position isn't all it could be. For example, you could be in Tundra or have no river. Many players will go ahead and play from these positions as the randomness of the start is one attraction, and if the position isn't very good its just another obstacle to overcome. Hoever when playing at the very high difficulty levels or playing for an entry on the HOF table, a good start is sometimes mandatory. Players used to had to do the following.
1. start a game
2. notice that there is no river (or whatever terrain feather they decide is necessary)
3. quit the game
4. reset up the custom game and restart
5. loop through 1 - 4 until satisfied
The Map Finder is a way to automate this procedure. It does not give you any additional information but allows you to continously generate random maps over and over, until the terrain in the visible area of the start (the 20 or so squares normally visible) meet your criteria.
For example, you could specify you want a fish, 3 hills (for production), 2 other food resources, and a river. That sounds like a pretty good start. Once Map Finder is installed correctly you could set up your game, start it, look over your initial position and if not satisfied, run Map Finder to continue generating starting positions until one matches your criteria. You could even have it save that starting position then continue searching for more until you had 10 or more good positions that you could look over, before you made one move.
To repeat, Map Finder does not give you any additional information, it just automates the "look at the starting position and restart if desired" process.
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Much longer I know, and I'm sure it could use some editing, but something like this is needed for the beginner.