Underground Garage is an extensive street racing and advanced tuning game in which you play as a mechanic building his position in the world of night racing and illegal modifications. It is a combination of realistic simulation of a workshop, free personalization of cars and dynamic driving around the city after dark. You start the game with simple orders for customers – you repair cars, replace damaged parts and gradually gain a reputation. Each car consists of dozens of components that you can disassemble, rotate and install manually. Collisions cause realistic damage to the body and engine, and the efficiency of the vehicle depends on details such as battery condition, oil, fuel, coolant or brake fluid levels.