This is so f*cking awesome. From a dev perspective, this is nothing else like "A game about digging a hole", its probably also marching cubes used but that game blew up and this here was just made in 3days for a JAM and its free :D i found it because i searched on how to reproduce that another game and came into marching cubes and this looks so awesome and it generated so much creative ideas for games where you can transform the terrain. Like a whole planet or just digging holes in the garden, lol.