Direct answer

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

ExpansionCost / pathStatus
Second room$50 room progressionVERIFIED
BalconyRoom chainVERIFIED
AtriumClub / quest pathPARTIAL
LaboratoryConstruction chainPARTIAL
Rooftop greenhouseFinal expansionPARTIAL
βœ“
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
β„Ή

Expansion shares the progression node dataset.