After playing Dwarf Fortress for some time, I felt the need to make the soil layers more interesting.

To achieve this, I created a small mod titled Soil Is Fun. This mod added fuel sources from peat and the appearance of peat and bog iron to certain soil layers, increasing the playability of many map locations. In addition, I modded in more mineral types and reworked the coal fuel system a bit. Overall, the mod enjoyed good reception and was added to the official Community Created Mods and Utilities List.

The latest version of Dwarf Fortress includes several of the stone changes I made, and breaks others, so a rework of Soil Is Fun to work on the new version is in order.