Logistic cannon (mass driver) introduces a new flexible way to deliver items over medium and long range. The automated delivery scheduler is optimized to support high throughput cargo transportation.
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Entities which interact with the circuit network.
More than just chests.