An old minecraft mod?

Ok this is going to sound so stupid. Years ago i used to watch a minecraft series and i finally have mine craft and i want to play this mod but i don't know what the name is and i can't find it. Pretty much in this mod you spawn in and after a while a random NPC will spawn and you can build this block and make them build stuff for you all you have to do is put the required items into the chest that spawns when you place the builder block down. When you build a house the first NPC will move in and on the builder block it says that and you can evict them and stuff, and another point i remember is that you collect some sort of tax from people who live in the properties that you build and with that tax you can pay NPC's to build more houses so more NPC's spawn in the world. Thats all i can remember for the mod and i really want to know what it was. Its not that minecollenies thing or any of them newer mods but it may have came out around the time that minecraft comes alive came out because i remember at the same time i watcher a MCA mod. If anyone has any ideas what this mod was please tell me.