⛏️ Dig, explore, loot, and survive in a vast underground world. Discover hidden treasures, special caverns, dangerous enemies, and depth-based progression from Easy to Nightmare. Experience reworked digging, balanced ore and oil progression, 8-level resource scaling, optional challenge modes, Train Interiors, research upgrades, and a balanced coin market. Enter the optional Dark Zones, where you have only 30 seconds to place lights before the darkness becomes dangerous.
Mods introducing new content into the game.