Decorative Blocks alter the look and feel mods alter things like the Skybox, or add decorative blocks like hallways, exposed pipes, showers, beds, etc.
Overview Mods can alter the game in a variety of ways. However, the following tools are recommend by most modders and make it much easier to create mods: There is also not a universal workflow that works for everyone.
There are many different workflows used by various modders.