True Terrain 2- No Swamps
By Wes Whitaker Sept.22,1999.

Version 2 changes:

Swamps now have the values and abilities of grasslands. The map generator assigns wet tropical tiles to swampland (wet temperate tiles are grassland, and wet desert tiles are plains). This renders large sections of the map unusable. This change allows tropical areas to develop competitive civs, resulting in better opponents, and thus more enjoyable games.

Oceans and rivers have been set back to 5 gold. This has finally persuaded the AI to shift away from beach tiles and onto land. Forests and Jungles have been given 5 gold, to allow flat areas to have more productive cities.

Nets cost 200 PW, and all fisheries 600.
Advanced Farms now costs 600 PW, instead of 500.
Finally, placing Forests costs 400, instead of 800.

In the goods.txt, Caribou and Giant Squid are now worth 10 gold.

Version 1 changes:

Originally, ocean types were generally better than land types in overall value, which didn't seem right to me. Therefore, I have strenghtened some of the land types, and weakened some of the ocean ones. Each of the basic six land types now have a total of 20 food and production, while the five basic ocean types have a total of 15.
 
Rivers only add 5 food OR 5 production, not both.
 
When mining, all terrain types now have approximately the same cost-to-benefit ratio as Mountains. This significantly reduces costs for all other types. In addition, Forest and Jungle tiles can now be mined (representing tree plantations), with the same benefits as on the Plains tiles. However, they start with 5 less production. These mining changes should give non-mountain types more potential at a fairer cost.

Railroads and Superconductors now cost slightly less.

Terrain      Food Prod Gold River

Grassland     15    5    0   5f
Plain         10   10    0   5f
Green Hill     5   15    5   5p
Br/Wh Hill     0   15    5   5p
Mountain       0   20    5   5p
Forest         5   15    5   5p
Jungle         5   15    5   5p
Desert         0   10    0   5p
Tundra         0    5    0   5p
Glacier        0    0    0   5p

Beach         10    0
Shallow Water 10    5
Cont. Shelf   10    5
Deep Water     5   10
Trench         5   10
Rift           5   25
Volcano        5   45

The terrain.txt and goods.txt files go in the default/gamedata folder. The ldl.str goes in the languade/gamedata folder, while the gl files go in the language/gamedata/gl folder. The gameplay description will not show the changes, but the info to the right and left of the picture will be correct, as will the info displayed by rt.-clicking over the terrain.