Extra Large Platform C

Extra Large Platform C is a large buildable platform in Astroneer, part of the Extra Large Platform family. It is a versatile base structure intended for heavy surface organization, with multiple attachment points and power connections for large-scale automation and base layouts.

The platform has two tier-3 attachment slots and one tier-4 attachment slot, allowing it to hold a mix of medium and larger modules. It also has four power sockets that can be used to connect it to a base network, making it useful as a central distribution point for equipment that needs steady power access. Because it can be attached to walls and ceilings as well as placed normally, it is also useful in compact builds or vertical base designs where floor space is limited.

Extra Large Platform C can be used in combination with resource storage to hold a very large number of smaller modules: up to 1,600 tier-1 modules can be stored when using four Large Resource Canisters. This makes it a practical option for players who want to keep a large number of items organized near a production area or transport hub.

When connected through a network that includes a compatible Oxygen source, the platform can also help provide Oxygen and Power to the player, so it can serve as part of a wider life-support and infrastructure setup. Its combination of multiple mount points, power access, and flexible placement makes it one of the more adaptable large platforms for late-game base organization.

Extra Large Platform C was first announced on April 16, 2019, during a Twitch stream and on the Astroneer development roadmap.