Stars
Terra is a low-level system programming language that is embedded in and meta-programmed by the Lua programming language.
Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation
https://forum.minetest.net/viewtopic.php?p=182724#p182724 put to github
Firefox extension that turns pages upside-down, plays weird mantra music and displays a lasagna with a horse whinny every 15 seconds.
Ruby, anticrystal and other delirium for minetest.
Space exploration, trading, and combat game.
Indexes all the user created mods on the Minetest forums
Digilines is a mod for Luanti/Minetest which adds data bus wires
Write mods without server restart while playing. Create custom machines that can build, dig, produce... Create your own games like minesweeper, sokoban,ctf, hide and seek...