As an aside, if you wanna try this with an AMD GPU you need to install this mod as otherwise the game has glitched graphics in a couple stages. It's all handled through the Unleashed mod manager and it's incredibly easy to set up, plus once the mods are installed you can boot up the game anyway you want (with some tinkering you can add a shortcut to Steam and set up custom banners so it can be right there next to all your other Sonic games). The more usual mod stuff (custom models, stages, physics, etc) The resolution fixes I mentioned earlier Disabling the battle music for nightime stages Control tweaks like mapping the homing attack to the jump button

You might be wondering, what is the point of this when the game is backwards compatible on Xbox with even an FPS Boost option to run it at 60FPS? Well, besides some advantages of emulation that the BC version doesn't have (like being able to run the game at higher resolutions than the 880x720 of the console versions), it turns out that emulated Unleashed has mod support. It still was the de-facto way to emulate Sonic Unleashed on PC as Xenia was even more unstable but anyways, long story short, the game is perfectly playable now on the latest builds of Xenia Canary with fantastic performance without the need to tweak anything. Performance could be worked around with sufficiently powerful hardware, but stability there was not much that could be done about it. So the quest to get the actual, full Sonic Unleashed on PC continued, and since a few years ago, the game has actually been mostly playable on RPCS3 but with two big issues - performance and stability. Physics and control differences between Unleashed and Generations will always make it feel different to play Certain stage gimmicks (like QTEs) are not replicated since it's mostly limited to the things Generations already has There's no 'game', being a mod the only thing they could do is add the stages to a custom 2D hub like in Generations. Of course, it wasn't without some issues:

The go-to way to 'play' it for years was the Unleashed Project, an incredible mod that recreated the main acts of the game within Sonic Generations. As with other Sonic games from that generation, Unleashed never recieved a PC port.

Best way to play sonic unleashed on pc