Forza Horizon 3 was never released for the PlayStation 3 . It is a Microsoft-exclusive title developed specifically for Windows 10
Where you CAN play Forza Horizon 3
Since you can't play Forza on a PS3, you might enjoy these high-quality racing sims that are available on the platform:
If you are looking for an open-world racing experience on the PS3, there are excellent alternatives that run natively on the hardware:
Scenario B: The "Fake" Mod for Grand Theft Auto V or Need for Speed Modders on PS3 have created car packs and HUD skins that mimic Forza Horizon. You might find a "Forza Horizon 3 Mod" PKG that replaces textures in Need for Speed: Most Wanted (2012) or GT6. This will install, but you are not playing Forza; you are playing a skin.
If you are looking for similar open-world or high-fidelity racing games on the PS3, consider these titles: Gran Turismo 5 or 6 : The premier simulation racer for the console. Need for Speed: Rivals : Features an open-world map with pursuit mechanics. Burnout Paradise : A fast-paced, open-world arcade racer. Test Drive Unlimited 2
What “repack patched” really means
In PC gaming, repacks are compressed installers. On PS3, “patched PKG” usually refers to modified game backups – but again, there’s no Forza game to patch.