The core gameplay of Stardew Valley revolves around building and managing your own farm, where you'll need to plant and harvest crops, raise livestock, and manage your resources. You'll also get to explore the nearby town, where you'll meet and befriend the locals, including a character named Marnie. As you progress, you'll unlock new areas, characters, and activities to enjoy.
Finding Marnie is one of the exciting aspects of the game, as she's a kind and interesting character who can become a close friend. You can usually find her at her Ranch, where she takes care of her animals, or around town, where she's often helping others. Make sure to talk to her and build a relationship, as it can lead to new opportunities and storylines.