Deep Drill

Deep Drill is a portrait underground digging game about balancing subway construction work with fuel survival. The player controls a compact drilling machine through an endless grid of soil, carving tunnels toward distant construction targets while watching fuel carefully.

Each new tile of dirt costs more fuel to break, while moving through an already dug tunnel costs less. Fuel ore hidden underground can refill the drill and keep the run alive, but detours can waste time and fuel. Construction targets appear across the expanding underground map, and an edge arrow points toward the target whenever it is outside the current screen.