Moonlighter is an RPG-action game from the creators of Beat Cop and This War of Mine, similar to The Legend of Zelda or The Binding of Isaac. You will fight in a variety of dungeons, fight monsters and collect a lot of loot with the subsequent sale of the loot.
This is where the second part of the game comes in: running the store. You actually play as a shopkeeper who sells his wares to make a profit. You can spend the profits to upgrade the store and hire new employees who can do all the hard work for you.