Really sorry that happened. The game currently auto-saves at the beginning of each new day. Save files are located at C:\Users<User_name>\AppData\LocalLow\NeighborsGames\UnderTheDesk\Saves.
Could you tell us what exactly happened — did the game crash, or did you exit manually? And at what point did the progress disappear? We'd like to look into it, because the auto-save should have triggered.
We're already working on adding manual saves — we understand it's a must with how long the in-game days are. Thanks for letting us know!
