Forza Horizon 6 Needs 156GB on PC and 144GB on Xbox Series X|S

According to a leak from the Xbox Store, Forza Horizon 6 will be one of the most storage-hungry racing games in recent memory. The base version alone—without any updates or expansions—will require 144.84 GB on Xbox Series X|S and a hefty 156.65 GB on PC. These numbers already point to an ambitious scale and technical scope.

The jump is striking when compared to previous entries. Forza Horizon 5 launched at around 103 GB, while Forza Horizon 4 weighed in at just 63 GB. Over two generations, the series has nearly doubled its storage footprint, and Forza Horizon 6 pushes that trend further with an increase of almost 50 percent. And if FH5 is any guide, post-launch DLC could easily push the total past 170 GB, making the eventual install size of FH6 look even more daunting.

The main driver behind this growth is the sheer scale of the game world. Set in a fictionalized Japan, the game’s Tokyo is reportedly five times larger than any city area in previous Forza Horizon titles. The developers have also focused heavily on seasonal variety, capturing real nature sounds at different times of the year across Japan—a detail that adds both immersion and extra data.

On the technical side, the PC version will support advanced ray tracing, global illumination, unlocked frame rates, and modern upscaling technologies like Nvidia DLSS 4, AMD FSR 3, and Intel XeSS 2.1. With over 550 cars in the roster, all that content and high-resolution assets further bloat the install size.

Still, Forza Horizon 6 won’t claim any overall industry records. Call of Duty: Modern Warfare III, for example, can swell beyond 300 GB when all modes and texture packs are installed. But within the racing genre, the new Horizon clearly raises the bar. The game launches on May 19, 2026 for Xbox Series X|S and PC, with a PlayStation 5 version to follow later that year.

The game carries a 12+ age rating.