Realistic approach to Factorio: Major changes to the technology tree, recipes and entity properties. Aimed at no safe area around the starting point. Less tiresome alien interaction and nest eradication.

New items: copper ingot, pig-iron ingot, steel ingot, steel gear wheel, ball bearing, steel rod, girder.
New weapons: 50-cal sniper rifle, tank HMG, Heavy destroyer drones

Update: Charcoal, gearbox, forging machine