Transforms many overlooked details. You can enable or disable the following options in config.lua: Modular Armor doesn't need Processing Units; Plastic is made from Light Oil; energy from all fuel is halved; alien evolution over time is 10x slower, but pollution is increased 5x; all floors can be placed up to water's edge; make Roboport doors quieter; disable picking up Robots while they're flying.
Known bug: If you use the option to make biters ignore rails and train stops, those entities can't be added to blueprints and may not show on the minimap. By default, this option has been disabled.