IRON NEST version 1.0 is single-player. The current Steam listing has no co-op, multiplayer, or online category.
The developer FAQ confirms that multiplayer support is planned for this game. It gives no date, mode, player count, networking details, or description of how the turret stations would be divided.
What you can play today
The released game is built around one operator moving between the map, calculator, loading equipment, and guns. There is no official split screen, online co-op, matchmaking, or multiplayer server.
If you buy the game now, the available product is the single-player release.
What the future statement covers
The developer has committed to future multiplayer support in the FAQ. That is enough to list multiplayer on the roadmap. It is not enough to describe a mode, promise co-op, or estimate a release date.
Watch the roadmap page and the official Steam announcements for the first dated feature details.
Community mods do not change the product status
Unofficial co-op projects exist on Nexus Mods. They require separate mod tools and have not been reviewed or supported by the developer. The multiplayer mod page records the public listing and the checks to make before installing anything.
A community mod can offer an experiment. It does not make multiplayer an official feature of the base game.
Should you wait
Wait if multiplayer is the main reason you want the game. There is no announced date or playable official mode to evaluate.
Buy the current release only if the single-player firing loop is enough for you. Future support may arrive, but the official material does not say when or in what form.
Sources
The store categories and developer FAQ were checked on August 22, 2026.