Skylines Wikia
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A milestone is the indication of the population growth of a city. When reaching the goal of a milestone, a city can unlock new features, services, land areas, buildings, city policies, and much more.[1]

The population requirement is not analogous between each map as each have different population requirements. The requirements may be the result of the buildable area within a map.

All milestones may be unlocked instantly in the Content Manager panel > Mods

Note: This is old and doesn't include all DLCs and CCPs in the description.

Milestones[]

0 Start
Base population requirement: 0
Features
Budget
Services
Electricity
Water and sewage
Roads
Two-lane road
Two-lane one-way road
Two-lane gravel road
Four-lane road
Six-lane road
Six-lane one-way road
Small roundabout
Zoning
Low density residential
Low density commercial
Industrial
Buildings
Wind turbine
Coal power plant
Water pipe
Water tower
Water pumping station
Water drain pipe
1 Little Hamlet
Base population requirement: 500
Features
Tax
First loan
Services
Education
Garbage
Healthcare
Buildings
Landfill site
Elementary school
European elementary school
Medical clinic
European medical clinic
Snow dump
2 Worthy Village
Base population requirement: 1000
Areas
2 km x 2 km
Features
Second loan
District
Policy
District specialization
Service policy
Services
Fire department
Police department
Level 1 unique buildings
Policies
Power usage
Water usage
Smoke detector distribution
Specialization
Forestry specialization
Agriculture specialization
Buildings
Fire house
European fire house
Police station
European police station
3 Tiny Town
Base population requirement: 1300
Services
Decoration
Level 2 unique buildings
Policies
Pet ban
Smoking ban
Parks and recreation
Schools out
Buildings
High school
European high school
4 Boom Town
Base population requirement: 2400
Areas
2 km x 2 km
Services
Public transport
Level 3 unique buildings
Bus
Taxi
Tram
Specialization
Ore industry specialization
Policies
Recycling
Recreational use
Extra insulation
No electricity for heat
Only electricity for heat
Roads
Cloverleaf intersection
Three-way intersection
Large roundabout
Highway
Highway ramp
Six-lane road with bus lanes
Four-lane road with bus lanes
Two-lane road with tram tracks
Four-lane road with tram tracks
Two-lane one-way road with tram tracks
Tram track
One-way tram track
Pipes
Water pipe with heating pipes
Buildings
Cemetery
Bus depot
Advanced wind turbine
Taxi depot
Tram depot
Geothermal heating plant
Boiler station
5 Busy Town
Base population requirement: 4600
Features
City planning policies
Services
Level 4 unique buildings
Leisure & tourism unique buildings
Specializations
Oil industry specialization
Tourism specialization
Policies
Free public transport
Heavy traffic ban
Encourage biking
Bike ban on sidewalks
NIMBY
Old town
Studded tires
Anti-slip studs
Roads
Two-lane road with grass
Two-lane road with trees
Two-lane one-way road with grass
Two-lane one-way road with trees
Two-lane road with bicycle lanes
Four-lane road with decorative grass
Four-lane road with decorative trees
Four-lane road with bicycle lanes
Six-lane road with decorative grass
Six-lane road with decorative trees
Six-lane one-way road with decorative grass
Six-lane one-way road with decorative trees
Six-lane road with bicycle lanes
Highway with sound barrier
Buildings
Hospital
European hospital
Oil power plant
Fire station
European fire station
Police headquarters
European police headquarters
Bus station
Jet ski rental
Fishing pier
Fishing pier winter
Fishing tours
Marina
Riding stable
Skatepark
Beach volleyball court
Restaurant pier
Snowmobile track
Ice hockey rink
Road maintenance depot
6 Big Town
Base population requirement: 7000
Areas
2 km x 2 km
Features
Taxation policies
Services
Level 5 unique buildings
Metro
Specializations
Leisure specialization
Policies
Education boost
Harsh prison sentences
Tax raise for low density residential
Tax raise for high density residential
Tax raise for low density commercial
Tax raise for high density commercial
Tax raise for offices
Tax relief for low density residential
Tax relief for high density residential
Tax relief for low density commercial
Tax relief for high density commercial
Tax relief for offices
Let go of leisure
Zones
High density residential
High density commercial
Office
Buildings
Metro station
Incineration plant
University
European university
Prison
Sauna
7 Small City
Base population requirement: 10,000
Services
Level 6 unique buildings
Train
Policies
Small business enthusiast
Big business benefactor
Industrial space planning
High tech housing
Highrise ban
Buildings
Train station
Cargo train terminal
Hydro power plant
8 Big City
Base population requirement: 16,000
Areas
2 km x 2 km
Buildings
Crematorium
Water treatment plant
9 Grand City
Base population requirement: 19,000
Features
Third loan
Buildings
Solar power plant
10 Capital City
Base population requirement: 32,000
Areas
2 km x 2 km
Services
Ship
Buildings
Harbor
Cargo harbor
11 Colossal City
Base population requirement: 40,000
Areas
2 km x 2 km
Buildings
Nuclear power plant
Cargo hub
12 Metropolis
Base population requirement: 55,000
Areas
2 km x 2 km
Services
Plane
Buildings
Airport
13 Megalopolis
Base population requirement: 80,000
Areas
2 km x 2 km
Features
Monument
Buildings
International airport

References[]

  1. "Build a Megapolis in Cities: Skylines for Unlockable Buildings and Bonuses". Escapist Magazine. The Escapist. 20 March 2015.
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