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CityZenEventsPatch v0.3 - Pollution!
In-game event

Patch v0.3 - Pollution!

CityZen · published 27 Jun 2026, 00:29 UTC · build 23897455

All eventsPlayers around this dateRead on Steam

Its been about a month since the last patch and work continues! The headline of this update is a brand-new pollution loop, a major overhaul of the power and water grids (now with renewable generation), and a much richer view into how your residents are doing. With the Playtest now publicly available, the demo has been retired.

New Features

Pollution

  • Added a new pollution system. Heavy industry now contaminates the ground around it, and that contamination spreads to nearby tiles and slowly cleans itself over time

  • Pollution affects your residents: dirty neighborhoods lower happiness, which in turn lowers the taxes those dwellings pay

  • Industry that produces wastewater must now route it somewhere

  • Added a Pollution overlay - a heat-map that shades the ground by how contaminated it is, so you can see at a glance where your city is dirtiest

Power and Water grids

  • Added renewable power generation

  • Added power storage and improved power transmission

  • Added water generation, water treatment, and improved water transmission

Economy and buildings

  • Reorganized the economy and added new service-based commodities and buildings

  • Added new Service related buildings

  • Rebalanced construction and operating costs across the building palette

Improvements and Enhancements

  • UX: Added a detailed dwelling needs panel. Inspecting a home now shows each of its needs, how stocked each slot is, current happiness, expected daily tax, and its pollution tolerance

  • UX: Improved building inspection - selecting a building now highlights its area of effect more clearly with a dedicated overlay

  • UX: Added toggleable information overlays

  • UX: Improved and corrected building tooltips

  • UX: Added localization for several major languages

Performance

  • Optimized building materials for better performance

  • Significantly optimized the water shader for better performance

Note

  • With the Playtest available, the demo will be disabled

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