Fire capsules of cargo between surfaces: up to space platforms in orbit, back down to the planet, and later across space to receivers on other planets. Each shot needs a capsule and a big charge of power. Circuit-controlled - and a capsule that lands on a full receiver, or on nothing at all, explodes and its cargo is lost. Inspired by the delivery cannon in Earendel's Space Exploration (an independent mod, not a port).
Mods introducing new content into the game.