Forza Horizon 6 leaked on Steam preload?

Forza Horizon 6 leak after unencrypted Steam update

A Forza Horizon 6 preload that should have stayed behind the curtain instead became available early after developers accidentally uploaded an unencrypted version of the game to Steam.

The leak appears to have started when an entire set of game files was pushed through a Steam update without encryption. Shortly after, SteamDB detected roughly 155 GB of content made accessible, enabling players to download the title ahead of schedule.

The practical impact is simple: people didn’t just see screenshots or rumors—they could obtain and inspect real build files well before release. That kind of “early access” through storefront technical errors often pressures publishers and platform holders to communicate clearly about the scope of the exposure, whether any progression or account data is involved, and how they plan to prevent similar incidents.

More broadly, this matters because Steam’s ecosystem is tightly integrated with user preloads, pricing visibility, and dependency checks. When a preload goes wrong, it can turn what’s usually a controlled marketing moment into a full-on data dump, which then feeds:

• Early spoilers from quests, assets, and naming conventions
• Datamining that can surface gameplay systems before official reveals
• Market noise as players shift from “waiting” to “scrutinizing”

For racing fans and Forza followers, the leak also raises expectations for what will be included at launch—since players can compare what’s on disk with what marketing has already promised. While the exact technical root cause wasn’t detailed, the chain of events is clear: a Steam-side update exposed unencrypted files, SteamDB spotted the size, and users gained a path to the content early.