No payments, no ads, no energy system, nothing that regenerates only by waiting. Every number below is tagged computed (a direct output of real linear algebra over the production graph you actually built) or authored (a designer-chosen constant or curve) — see DESIGN.md for the full disclosure discipline.

Your production graph

Stocks

Edges

Build & connect

Every action here spends stock from a node you choose — never a timer, never real money.

Build a node (costs , authored)
Connect an edge (costs , authored)
Upgrade an edge (costs , authored)