Plan the dirt, then simulate the day.

Top-down grid editor + deterministic simulation engine. Paint dig and dump zones, raise or lower terrain, place machines, then press play. Watch cycles run, cubic yards move, paths plan around occupancy. Deterministic for the same inputs. Keyboard: 1 select / 2 raise / 3 lower / 4 dig / 5 dump / 6 haul road / Space play / R reset.