: You need both a high supply of coal and a steel mill to smelt gold ore. Build at least 3–4 gold mines to sustain decent output. Management & Survival
: Start by building one or two elevator sections at the end of your initial warehouse to ensure smooth resource flow. Project Wunderwaffe
You cannot build weapons without a stable supply of raw materials and scientific breakthroughs. : You need both a high supply of
: Connect warehouses directly to the main elevator shaft using tunnels; placing them between other facilities can block their function. Project Wunderwaffe
The layout of your underground complex determines your efficiency.