all you need is
- Unity3D installed on your computer and basics of Unity3D use.
- Setup an scene and create your map , send me a drawing of what you want on the map and send me.
- Third is , export the ALL FILES of your map project in .unitypackage file format and send me a message.
// I will put what you want on the map.
// if you want more explanations about the process, send me a message