Build Racer is a free racing game developed by KAYAC Inc. for the Android platform. In this game, players must build a machine using various parts and reach the goal by racing against other players. The game is set in a colorful and interactive world where players can experiment with different combinations of parts to create the ultimate racing machine.

The game presents a unique challenge to players as they must not only race against other players but also build their own racing machine. The gameplay is simple and straightforward, with intuitive controls and a user-friendly interface. The game offers a wide variety of parts to choose from, including engines, wheels, and fuselages, allowing players to experiment with different combinations to find the best possible machine.

Overall, Build Racer is a fun and engaging game that tests your building and racing skills. With its colorful graphics, intuitive controls, and challenging gameplay, it is sure to provide hours of entertainment for players of all ages.