Metropolis: Idle Tycoon for Android

The player builds his industrial business empire in the world of diesel punk. He builds mines, oil rigs, and factories, hires workers, and upgrades equipment. Some upgrades require resources, which you have to buy or produce yourself.

Production units work without the player's participation. In most of the buildings, you can look into the production halls, which are displayed as small two-dimensional locations with working people. Monochrome graphics prevails in the design which adds  antiquity to the atmosphere.