Here is how you can recover your lost savegame files especially if you play on Cybercafe or Gamecafe.
How To Download your saved game on steam cloud
You can download it from here :
https://store.steampowered.com/login/?redir=account%2Fremotestorage&redir_ssl=1
Search for State of decay 2 gamefiles and download all of it
How to recover your lost savegame files
For example, mine is : C:\Users\Dalvizar1\AppData\Local\StateOfDecay2\Saved\Steam\**********983590*******\******043811****\Release\v2
Step 2. if you dont have these file you can do step below, if you already have skip to step 3!
- Right Click on State of decay 2 game from steam, uncheck steam cloud sync
- Play the game, create new savegamefiles
- Exit the game
- AFter you success move the savegame files you can reenable the steam cloud sync again
Step 3. Rename the files, same to savefiles that has been created itself by the system.For examples :
Downloaded savegame files => %WinAppDataLocal%StateOfDecay2_Saved_Steam_******19835904*****_*****4104381****_Release_v2_SaveGame0.sav
Change to > SaveGame0.sav
Step 4. Enjoy the game again!
Thanks to Dalvizaru and 最好去睡觉 for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.