Assassin's Creed Syndicate Save Game Location

Windows

Steam:

Assassin's Creed Syndicate save games installed through Steam can be found on Windows here:

C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\savegames\[user_id]\1957\

Other Locations:

Assassin's Creed Syndicate save games may also be found on Windows here:

Uplay:

C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\savegames\[user_id]\1875\

Linux

Assassin's Creed Syndicate save games can be found on Linux (Proton) here:

~/.steam/steam/userdata/[user_id]/368500