Direct answer

Expand by unlocking rooms in the apartment chain โ€” starting with the $50 second room โ€” then balcony, atrium, lab and rooftop.

ExpansionCost / pathStatus
Second room$50 room progressionVERIFIED
BalconyRoom chainVERIFIED
AtriumClub / quest pathPARTIAL
LaboratoryConstruction chainPARTIAL
Rooftop greenhouseFinal expansionPARTIAL
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Evidence note

The room chain is observed in 1.0; exact costs are verified per node in the progression graph.

OBSERVED

Second room cost and the loan loop are the launch-week economy facts players verify first.

Progression
โ„น

Expansion shares the progression node dataset.