Core tables and fields:
game_id (PK), game_name, platform, genre, developer, publisher, release_date, description, rating (ESRB/PEGI), price, stock_quantity, image_url, game_url
customer_id (PK), first_name, last_name, email, password_hash, phone, address, membership_level
order_id (PK), customer_id (FK), order_date, total_price, order_status, payment_method
order_item_id (PK), order_id (FK), game_id (FK), quantity, item_price
review_id (PK), game_id (FK), customer_id (FK), rating, review_text, review_date
employee_id (PK), first_name, last_name, email, phone, job_title, department
inventory_id (PK), game_id (FK), quantity, warehouse_location
Extensions: Sales analytics, promotions/discounts, user accounts, marketing campaigns.