
Greetings, Mayors!
Patch 1.5.9f1 is officially live. This update delivers critical refinements to vehicle pathfinding and addresses various community-reported issues tracked on the PDX Forums. Additionally, we’ve overhauled our shadow rendering pipeline to eliminate distracting visual artifacts at both short and long ranges and refreshed our localization files to better support our global player base—with particular focus on improvements for Simplified Chinese.
This update is fully compatible with existing save files and should not disrupt your current mod loadouts.
If you encounter any lingering issues or find new bugs, please contribute your findings to our dedicated Bug Reporting board.
Gameplay Enhancements
- Reduced instances of redundant U-turns by AI vehicles.
- Vehicles now transition into correct turn lanes earlier when navigating intersections or highway exits.
- Fixed a calculation error where electricity costs were incorrectly derived from water fee structures.
- Resolved a crash occurring when interacting with DLC transport lines in vanilla sessions.
- Fixed an issue preventing the Coal Power Plant from deploying vehicles to procure resources.
- Delivery trucks now consistently depart specialized industry buildings, preventing cargo bottlenecks at facilities like farms.
- Natural resource depletion rates have been corrected for “Easy” mode.
Interface & Usability
- The education overlay now displays accurate enrollment eligibility for Elementary Schools.
- Resolved an issue causing UI elements to vanish when zoning buildings on road corners.
- Hotel guest counters now function correctly and reset at midnight.
- Added filtering options to the build menu for Region Packs and asset mods.
- The benchmark screen now correctly displays screen resolution instead of the game version.
- Refined the visual layout of the benchmark page.
- Introduced sliders to adjust zone cell grid and border transparency.
- Tool parameters, such as road elevation settings, now persist when switching between related tools.
- Corrected various typos and inaccuracies within the in-game encyclopedia.
- Improved controller navigation within the Glossary when high text scaling is active.
- Fixed an issue where the Glossary search bar would glow bright green when selected via controller.
Visual & Rendering
- Stabilized shadow render distances to prevent “popping” artifacts near the horizon.
- Resolved shadow clipping issues that occurred when zoomed in close to the ground.
- Corrected uneven shadow cascade distribution, improving shadow fidelity near the camera.
- Mitigated tree shadow flickering during active simulation and solar cycles.
Technical & Optimization
- Resolved an issue where Volumetrics Quality Settings failed to apply.
- Fixed a serialization bug in Region Packs regarding fire hazard settings.
- Addressed a game error triggered by launching the client without an active Discord connection.
- General localization polish across multiple languages.
- Improved performance when deactivating playsets to prevent long hang times.
- Purged extraneous CSS warning logs for a cleaner game diagnostic output.
Modding Support
- The modding log now explicitly identifies the active playset and enabled mods.
- Optimized mod loading sequences; if mods fail to load within two seconds, the game will proceed to the main menu and finish loading assets in the background.
Editor Updates
- Autosaving functions now remain stable when using custom water and terrain.
City Stations Creator Pack
- Compact Bus Depot: Adjusted unlock requirements so the building is accessible without requiring a pre-existing depot.
- Small Bus Terminal: Realigned bus lanes to ensure passenger doors face the bus stop.
- City Central Train Station: Fixed an underground lighting asset that was clipping beneath the terrain.
- Compact Refurbished Tram Depot: Enhanced track connectivity on sharp-angle road placements.
- Small Tram Plaza: Fixed an erroneous “Road Required” alert when placed on pedestrian streets or medium-sized roads.
Known Issues
- Microsoft Store users may notice a missing taskbar icon.
- Launching a new game with “all map tiles unlocked” and tutorials enabled may fail to unlock all tiles for some players.
- The benchmark screen may report an incorrect refresh rate of 60Hz regardless of your monitor’s actual capabilities.
