SinceAssassin’s Creed Mirage is available via two storefronts on PC, the save file location differs between those two. Now, if you have made a default installation of the storefront on your PC, here’s where you will find the saved files of the game: Ubisoft Connect: C:\Program Files (x86)\Ubisoft\UbisoftGameLauncher\savegames\GpdsHQ.