Where do I Find my mods in EU4? For Mac editions of EU4, mods should be placed in this directory: To access that path, just open up a Finder window, press COMMAND + SHIFT + G on your keyboard, paste ~/Library/Application Support/Steam/SteamApps/common/Europa Universalis IV/mod into the text field and hit the Go button. To open and save these images, you need to use NVIDIA Texture Tools. Several files, such as colourmap_autumn.dds and such use the dds format.
Hopefully the information contained here will help. FAQ about Eu4 Custom Map University Can You mod the map in Europa Universalis? Modding the map in Europa Universalis can be very difficult, especially when you run into errors.