Extract your mod folder into the Dwarf Fortress/mods/ directory.
Your zip should contain a folder named with your Mod ID (e.g., MyUsefulMod ), containing: : Essential metadata defining your mod. DwarfFortressMod.zip
Use the data/vanilla/vanilla_procedural files as examples to see how to script new types of monsters. What type of content A new item/creature (raw text file)? A graphical change (sprites)? A gameplay behavior tweak (Lua script)? Extract your mod folder into the Dwarf Fortress/mods/