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This article is considered accurate for the current version of the game.

As a city grows, new population milestones will arise that unlock new services, buildings, zones, and areas for the city as well as giving extra cash.

  • New services allow you to add new services to your city. When you unlock a new service, you are also given access to a basic building of that type. At later milestones you can unlock new buildings for those services. Usually new buildings provide you with more effective means of managing your city.
  • New zones include higher density residential and commercial zones and office zones.
  • Unique buildings include various significant buildings, each with separate unlocking requirements and benefits. Monuments are unlocked at the last milestone.
  • When a new area is unlocked, you can choose to buy one of the adjacent areas in the area view to expand your city. Some of the areas can have water areas, highways, and/or natural resources. You can have a total of nine areas unlocked by the end of the game, but this could be increased to a total of 25 areas or even 81 areas with Steam Workshop modifications.

List of milestones[edit]

The population requirement appears to depend on the map selected, most likely how much of the map is suitable for building. The exact formula is currently unknown.

Milestone Required
Areas Features Services Zoning Policies Roads Buildings Money Bonus
Little Hamlet 500 1 Taxes
Garbage Disposal
Elementary School
Landfill Site
Medical Clinic
Snow dump
Worthy Village 1000 2 Districts
Second Loan
Fire Department
Police Department
Unique buildings
Agriculture Specialization
Forestry Specialization
Power Usage
Smoke Detector Distribution
Water Usage
Fire House
Police Station
Tiny Town 1300 Decoration Level 2 unique buildings Parks and Recreation
Pet Ban
Smoking Ban
Schools Out
High School 20,000
Boom Town 2400 3 Transport
Level 3 unique buildings
Ore Specialization Recreational Use
Extra insulation
No electricity for heat
Only electricity for heat
Cloverleaf Intersection
Highway Ramp
Large Roundabout
Three-Way Intersection
Roads with Bus Lane
Advanced Wind Turbine
Bus Depot
Taxi Depot
Tram depot
Geothermal heating plant
Boiler station
Busy Town 4600 City planning policies Level 4 unique buildings
Leisure & Tourism unique buildings
Oil Specialization
Tourism Specialization
Free Public Transport
Heavy Traffic Ban
Bike ban on sidewalks
Encourage biking
Old Town
Studded tires
Anti-slip studs
Decorative roads
Highway with Sound Barrier
Roads with Bicycle Lane
Fire Station
Oil Power Plant
Police Headquarters
Bus Station
Leisure buildings
Big Town 7000 4 Taxation policies Level 5 unique buildings
High-Density Commercial
High-Density Residential
Office Zone
Leisure Specialization
Education Boost
Harsh prison sentences
Tax raises and reliefs
Let go of Leisure
Incineration Plant
Metro Station
Small City 10000 Level 6 unique buildings
Big Business Benefactor
High Tech Housing
Highrise Ban
Industrial Space Planning
Small Business Enthusiast
Cargo Train Terminal
Hydro Power Plant
Train Station
Big City 16000 5 Crematorium
Water Treatment Plant
Grand City 19000 Third Loan Solar Power Plant
Capital City 32000 6 Ship Cargo Harbor
Colossal City 40000 7 Nuclear Power Plant
Cargo Hub
Metropolis 55000 8 Plane Airport
Megalopolis 80000 9
Monuments International Airport