Cities: Skylines Save Game Location

Windows

Cities: Skylines save games can be found on Windows here:

C:\Users\[user_name]\AppData\Local\Colossal Order\Cities_Skylines\Saves\

Linux

Cities: Skylines save games can be found on Linux (Proton) here:

~/.local/share/Colossal Order/Cities_Skylines/Saves/