Improved Road file

Plant forest (see Forestry mod Forums.civfanatics.com) restored by adding new improvement – tree nursery, which upgrade in 25 turns to forest. I add 1 production on tree nursery for AI could build it and could plant forest too. I add improvement named terrain transforming (need COMBUSTION). After worker builds it, tile with it changes:

*ice to tundra,
*tundra and desert to plant,
*on plant and grassland without hills appear hills,
*on plant and grassland with hills they disappear.

I think AI can build terrain transforming only on ice and desert with road or railroad, because on other terrain there’re other improvement to build.