Definition: Map Analysis allows you to decipher more about the map you are playing on than is readily visible. It requires the use of the standard Map Editor that shipped with Civ2. It does not require black-clicking. Usefulness: It allows you to know where the huts are so you can get to them more quickly when hut hunting (black-clicking can make this even more powerful by letting you know which locations are not on land). It also allows you to know which grasslands are on a special. This latter info is very precious for any (future) large/productive city but crucially so for your science city. Map Editor facts 1. Coordinates (x,y) in Map Editor correspond to Coordinates (2x,y) in Civ2 if y is even and to Coordinates (2x+1,y) in Civ2 if y is odd 2. The location of huts, location of resources, and type of resources (whale versus fish) are controlled by a single parameter called Resource Seed which can be set from the Map Editor. 3. While the resource seed range is huge, there are only 64 unique possibilities. That is, the map for resource seed x is identical to the map for x+64 4. Let y=x+32. The only difference between a map whose resource seed is y and a map whose resource seed is x is the type of the resources. The locations of the resources and huts are identical. 5. Let y=x+16. The only difference between a map whose resource seed is y and a map whose resource seed is x is the type of the resources and the location of huts. The locations of the resources are identical. 6. Unlike all other terrain types which come in 3 types (unspecial, fish special, whale special), Grassland comes in 2 types (shielded or unshilded). The shields have their own pattern which is totally independent of the special resources pattern. While I can describe the pattern, it is so easy to see that you may as well just create a big land mass of all grassland in Map Editor and see it for yourself. (7 & 8 below are postscript. Thank you ElephantU and SlowThinker.) 7. The pattern of the specials is always the same regardless of the seed. That is, the relative locations of specials (ignoring the type of the special) to one another is always the same. 8. There are 4 groups of seeds: 0-15, 16-31, 32-47, 48-63. If you change the seed within a group the pattern of the specials is only shifted. The relative location and types of the specials remain the same. In other words, if you ignore the coordinates the pattern does not change within a group of 16. See the posts by ElephantU and SlowThinker below for pictures and detailed description of these patterns. How to do Map Analysis for a fresh Civ2 game Siwtch to view mode. Take the cursor around to figure out the highest x and y coordinates you can find. Also find out whether the map is round or flat. Start the Map Editor. Create a blank map whose width is (x+1)/2 and whose height is (y+1). Use fact 1 above to find the tile in the Map Editor that corresponds to your starting location. Draw in the visible land. The resource seed always starts at 1; increment it till you get any visible specials in the right locations. At this step you are ignoring the special's type. That is, if you get fish where you expect whale it is OK. Just get the locations right. Once this is done if the special types or the visible huts are not right, use rules 4 and 5 above to make them right. If you have few visible specials or huts you may not find a uinque resource seed. Often this happens when there is plenty of grassland at the starting loction. Map Analysis is still useful though as it may tell you where to go nearby to resolve the ambiguity. Once you figure out the resource seed you know the location of all the specials (even if covered by grassland) and huts. Useful Civ2 Map facts 1. If resource seed of a custom map is 1, Civ2 chooses another resource seed randomly. For all other resource seeds Civ2 asks you in the start up sequence whether you want the resource seed randomized. Thus, if you have designed a map and want to keep its resource seed at 1 use 65 instead. 2. Whales and Fish that are not accessible from a potential city located anywhere are not shown in Civ2. Thus if you are exploring and see a whale or a fish next to darkness land is close by. 3. Grassland is the only land type that hides special resources. The best way to reveal the resource is to mine the grassland into forest. 4. If the map is round, tiles whose x coordinate are close enough to zero to be within the radius of two cities located on the opposite sides of the x=0 line can be simultaneously used by both cities.