Minetest's top original voxel game about emergent mechanics and exploration
Dais Ex Machina
An other-worldly platform to preserve some of your stuff across map resets for NodeCore
Draw power from the world, and use it to power machines and tools.
Visually programmable turtle bots
Adds digital circuitry, including wires, buttons, lights, and even programmable controllers.
Supplies a complete set of nice, round mesh-based water pipes, boxy item-transport tubes, and devices that work with them.