To play Trading Card Store Simulator, use your mouse to interact with the shop interface on a browser or tap on mobile devices. Click to stock shelves with booster packs, set prices via the menu, and serve customers to earn profits. Open packs by selecting them in the inventory menu to collect cards, which you can sell or keep for your collection. Host tournaments by setting formats and fees in the event menu, ensuring your shop is clean to keep players happy. Use earnings to upgrade your store or hire staff through the management menu. Strategize pricing based on market trends and customer feedback to maximize profits, and keep shelves stocked to avoid losing sales. The game supports fullscreen mode and is playable on browsers or mobile devices via the CrazyGames app.