You have to save your game manually WASD or arrow keys to move.
I made this game by myself. If you make a game similar, please give me credit. Thanks to @JonGamingGod for helping me with some bugs Saving system-DkUniverse on YouTube Fisherman-Shutterstock Shopkeeper-Design & Illustration Clownfish-Freepik Tuna-Shutterstock Koi-Patchyfish on DeviantArt