Masonry
Materials · Atomic era
Reinforced concrete. Cisterns, walls, and a city that can grow past tier 1.
Effects
- Cities may reach tier 2
Unlocks
CisternStorage · Era 1
Hydro damPower · Era 1
ParkCivic · Era 1
ProspectorCivic · Era 1
WallsMilitary · Era 1
Unlocks policies
Boost
Research is cheaper once you meet this condition: Have 2 Lumber Camps standing.