Key Highlights:
- Cities: Skylines II expands the original city-building formula with more detailed traffic AI, zoning, infrastructure and economic simulation.
- New progression systems allow players to unlock services through experience points and choose development priorities.
- Dynamic seasons, groundwater supplies and upgradeable city services introduce additional planning decisions before the October 2023 release.
Colossal Order is introducing major gameplay changes in Cities: Skylines II, including more advanced traffic behaviour, deeper economic systems and greater control over urban development. Scheduled for release on October 24, 2023, the sequel aims to make city management more realistic without abandoning the familiar zoning and construction mechanics.
Through its official development diaries, Colossal Order has detailed how these systems will work, from managing electricity networks to tracking the individual lives of citizens. The changes go beyond visual improvements, introducing new decisions about infrastructure, public services and how a city grows.
One of the biggest improvements concerns road construction and traffic. Drivers will consider factors including journey time, cost and comfort when choosing routes, while the road-building tools provide more control over intersections, lanes and highway connections.
City services are also more flexible. Instead of repeatedly constructing separate facilities, players can upgrade buildings such as fire stations, hospitals and schools with additional capacity or specialised functions. Services can be assigned to districts, allowing different neighbourhoods to receive attention according to their needs.
Progression has received a substantial overhaul. Cities earn experience points through development, unlocking milestones that award money, expansion permits and development points. Players can then spend those points within Development Trees to unlock particular services, rather than following a fixed progression path entirely determined by population.
The redesigned zoning system offers six residential zone types, including medium-density housing, mixed-use buildings and low-rent accommodation. European and North American architectural styles can also be combined within a city, while Signature Buildings introduce unique structures with additional local or city-wide benefits.
Another notable change is how infrastructure interacts with roads. Electricity and water connections are integrated into most road types, reducing the need to construct separate networks everywhere. However, electrical distribution now has capacity limits, so a poorly connected grid can develop bottlenecks even when total power generation is sufficient.
Groundwater introduces another consideration. Underground reservoirs provide an alternative freshwater supply, but they replenish at limited rates and can become polluted. Industrial placement and sewage management therefore have consequences beyond the immediate appearance of a neighbourhood.
Weather and seasonal changes add further complexity. The Climate & Seasons development diary explains that each map has its own climate, influencing temperature, daylight and weather patterns. Snow can affect road conditions in colder regions, while seasonal temperatures influence electricity consumption.
The simulation also gives individual citizens more detailed lives. Residents age, attend school, find employment, form households and make decisions influenced by their circumstances. Players can follow particular citizens through a Lifepath Journal, observing events such as changes in employment and living arrangements.
These systems connect directly to the economy. Businesses consider available workers, transport costs, resources and potential profitability when choosing locations. Residential demand also depends on factors such as employment opportunities, household finances and the availability of suitable accommodation.
I think the most promising improvement is how these systems interact. A badly designed road network could affect commercial profitability, while poorly planned housing and public services might influence where residents choose to settle. The real test will be whether those relationships remain manageable as populations grow.
Scale remains another important consideration. The sequel offers 441 unlockable tiles covering approximately 159 km², following the Cities: Skylines II promotional map-size correction earlier in the year. That provides considerably more standard buildable space than the original game’s nine-tile limit.
The first game established a strong foundation for detailed city construction, supported by years of additional content and community modifications. Its final expansion and Content Creator Packs also marked the transition towards a sequel intended to incorporate more sophisticated systems from the outset.
Cities: Skylines II appears ambitious based on the features demonstrated so far, particularly its improved traffic AI, flexible progression and interconnected simulation. However, these pre-release demonstrations cannot establish how well the systems will perform in densely populated cities or whether their added complexity will consistently improve the experience.
Later Update: Paradox Interactive and Colossal Order subsequently delayed the PS5 and Xbox Series X|S versions until spring 2024 to allow additional development and optimisation. The PC edition remained scheduled for October 24, 2023, meaning the original simultaneous multiplatform launch would no longer take place.
