This is my SIMPLE server subgame, based on:

BlockColor is a Game Creative for Minetest Engine 0.4.16 or later versions, you can use 8 Nodes'Color (Blocks, Stairs, Windows, Lights, Slabs, Waters and Others ?). BlockColor use Custom Mapgen, Hands, Inventory and Textures for Nodes.

GPLv2 for code, CC-BY-SA 3.0 for media.