Complete one clean oil-to-sale cycle.

First-session checklist

1. Claim or enter your plot.Use the live prompt shown by the current experience; the public description does not publish control names.
2. Collect oil.Confirm the resource visibly moves into the next factory stage rather than assuming a decorative pump is active.
3. Process the oil.Follow the connected machine or prompt immediately after collection and watch for a distinct product output.
4. Complete the first sale.Trace the finished product to the selling point and verify that cash or profit visibly changes.
5. Repeat once before upgrading.The first repeated wait tells you whether collection, conversion or selling is the constraint.

One-change rule

Buy the option whose live description names the constrained stage, then repeat the same route. If the queue moves, keep the upgrade; if nothing changes, inspect the previous handoff instead of stacking purchases.