How do I increase my resource storage capacity (Storehouse)?

Each resource's maximum storage is raised by the Storehouse, a node in the Infrastructure tree.

The confirmed value: Storehouse I (max) = +500,000 capacity per resource.

Why it matters: without enough capacity, your production overflows and is lost (the surplus isn't stored). If you see a gauge stuck at max, that's your signal to level the Storehouse.

But watch the trap: since resources reset every Reign, there's no point filling your stores to the brim "for later". Level the Storehouse just enough not to waste your current output, and spend rather than hoard.