Forza Horizon 6 Leaked With 155 GB Steam Files Ahead of May 19

Forza Horizon 6 leaked after Playground Games reportedly uploaded an unencrypted Steam repository with 155 GB of files ten days before release. Reports on social media said some players could explore the files and run the game shortly after they appeared.

Grant and the 155 GB dump

Grant, a writer, said the repository contained thousands of assets across 155 GB of content. That scale suggests this was not a stray image or trailer clip but a pre-release build with enough material for users to move beyond speculation and into the game files themselves.

Reports on social media said players could explore the files and run the game after the upload. One user also posted a video to YouTube showing a couple of minutes of gameplay.

Steam files before May 19

The game was reportedly uploaded to Steam ten days before its global release on May 19. That timing left little room for any fix before launch, and the leak arrived before Playground Games had commented on the situation.

The same pattern appeared in March with Death Stranding 2, when around 113 GB of files were uploaded without appropriate encryption just days before release. Forza Horizon 6 now joins that short list, and the practical effect for players is simple: early builds can spill into public view before the studio decides they are ready.

The open question is whether the Steam repository stayed exposed long enough for the download to spread further before May 19.