Orestorm Factory

"Orestorm Factory is a massively multiplayer Fantasy Arcade BulletHell Roguelike, where you build a factory of drills and processors to loot a cave while dodging enemies and your own machinery. In single-player or multi-player mode, navigate through an ever-changing cave, collecting valuable resources and power-ups, and upgrade your factory for increased power and survival. With permadeath and randomized levels, each playthrough offers a new challenge."