Cities: Skylines 2's Largest Update Patch is Here!
CScgy·7/17/2025
Cities: Skylines 2 1.0.15f1 Update Patch Notes
On Friday, December 1st, Cities: Skylines 2 released the 1.0.15f1 update patch containing a series of game fixes and improvements.
Gameplay Fixes
- Mail System Fixes:
- Fixed citizens sending mail without a destination
- Fixed mail trucks not sending/collecting mail to target buildings on specific routes
- Fixed mail trucks being unable to simultaneously deliver and collect mail from the same building
- Fixed mail sorting function failing to export global mail
- Warehouse Logistics Fixes:
- Fixed non-exported vehicles incorrectly displaying as exported
- Adjusted inventory capacity and export thresholds for ports and train stations
- Improved pathfinding algorithms to consider storage and freight stations as valid import candidates
- Pathfinding System Fixes:
- Added pathfinding penalties for illegal street crossings
- Fixed several cases where vehicles got stuck
- Prevented citizens from occupying housing slots in buildings without road connections
- Ensured citizens without external connections cannot move into the city
- Water and Electricity System Fixes:
- Fixed hydroelectric plants increasing output with simulation speed
- Improved water flow updates during terrain modifications
- Fixed coal power plants not importing resources from nearby ports
- Road System Fixes:
- Fixed multiple issues related to constructing multi-level roads, elevated water roads, or bridges
- Improved elevated road construction to generate more support pillars
- Other Fixes:
- Fixed not receiving XP for constructing landmark buildings
- Fixed citizens shopping in industrial zones instead of commercial districts
Graphics Fixes
- Improved terrain smoothing for networks and large buildings
- Fixed international airports missing bus stops when using North American themes
UI Fixes
- Improved panels for households and single-family homes
- Household members will now display sorted by age
Other Fixes
- Fixed multiple achievements not unlocking
- Fixed missing engine sounds for forestry zone loggers
- Increased sound distance for all emergency vehicle sirens
- Added 2 new tutorial steps
- Added missing translation content
This is currently the largest fix patch since Cities: Skylines 2's release, addressing mail, exports, warehouse logistics, and many other systems.