we finally re-enabled the Steam Auto-Cloud features. Obviously we tested it but we are still not sure what caused the save problem in the first place. PLEASE always backup your saves (You can find them here "C:\\Users*YOURUSERNAME*\\AppData\\Local\\Stonemachia\\Saved\\SaveGames) and write to us if you encounter any errors!
IF YOU USED EXTERNAL SAVES IN THE PAST PLEASE DO NOT MODIFY THE FILE CALLED steam_autocloud.vdf!!!
Steam Cloud is back. (Please help us)
Source: Steam Community (opens in a new tab)