Cities Skylines Race Day v1.21.1-f9 + Update (RUNE)

About The Game

The checkered flag awaits in Cities Skylines Race Day, a 2026 simulation and management expansion from Tantalus Media and Paradox Interactive that brings high speed excitement to the world's most beloved city builder. Your city has grown, your population is happy, and your budgets are balanced. Now it is time to put your metropolis on the map with world class motorsport facilities that attract visitors, media attention, and economic growth. The challenge lies not just in building tracks, but in managing the complex ecosystem of events, spectators, and logistics that make race weekends successful.

The building tools give you unprecedented control over track geometry, elevation changes, and surrounding facilities. Design pit buildings, grandstands, and media centers that function as real infrastructure during events. The latest version introduces a career mode where you start with small regional races and work your way up to hosting world championships, each tier bringing new challenges and rewards. Management responsibilities include negotiating with event organizers, scheduling practice sessions and qualifying, and ensuring your city's infrastructure can handle the influx of race fans. Strategy decisions affect everything from ticket pricing to safety car deployment during incidents. Casual options let you focus on creativity, while simulation depth satisfies players who want to manage every detail. The visual fidelity captures the excitement of race day, with detailed car models, dynamic weather, and crowd animations that bring events to life. If your city has always felt like something was missing, you should download the game and discover that the missing piece was speed.

NOTE. Uploaded version: 13 May 2026 [v1.21.1-f5 Build 22187857] + Update v1.21.1-f9. This is Full Release and latest version of game. The game is already Packaged in ISO File and ready to run, read the instruction below.

Host Races & Parades

• Use Event Roads to create routes for Motor Races, Running Races, Cycling Races, and Parades. Event Roads function as regular streets day-to-day, then temporarily close to traffic when an event starts—transforming your city into a safe, festive venue.

Build a Custom Race Venue

• Create a race destination that’s uniquely yours. Build a custom motor racing venue with Motor Race Tracks and your own road layout. Design a purpose-built circuit, or connect your track to Event Roads to create a citywide race route that roars through the streets on race day.

New Event Buildings and Spectator Stands

• Build the heart of the action with new event buildings such as Race HQ, pit garages, and start and finish areas. Line your routes with spectator stands and decorations to pack the sidewalks with cheering crowds and boost the spectacle.

Customize Your Events

• Run the show with new event tools: choose event types and tiers, set ticket prices, and manage your city’s full event lineup, from past highlights to current happenings and upcoming shows.

This expansion can be bought as part of the Race Day Bundle, containing Race Day, Renewed History, Iconic Brutalism, and 8 Gear Radio.