Copper

Copper is a mineable resource named by Washbear in its co-op update. The example concerns a friend mining it while resource harvesting stays synchronized between players. This establishes an interaction with copper in the world, but the post does not identify a deposit location, a resulting crafted item or a technology that requires it.

The January 2026 announcement introduces copper while explaining multiplayer development. It is an example of a resource interaction, not a dedicated mining reveal. The following explanation concerns world resources disappearing when harvested and spawned remnants staying synchronized, rather than a copper-processing chain.

Copper’s explicit connection here is to shared harvesting in co-op. The studio uses mining to explain why changes to world resources must be visible to connected players. It does not connect copper to a named machine, train module or recipe, so its role in construction or technology cannot be specified from this source.

The full update provides no copper location, mining tool requirement, yield or processing recipe. As reviewed on 7 September 2026, the resource is confirmed as mineable but its downstream use remains open. A material guide would need an additional source naming where copper occurs and what the game actually makes from it.