Race Track Builder is a racing simulation game that let you design, race, and upgrade racing cars and your track to be the fastest. Tons of racing cars collection is waiting for you to collect and upgrade! Experiment with your dream tracks to be the best track builder! - BUILD the awesome race track you can imagine with every track type, dirt, mud, asphalt, sand, or futuristic road and complete with jumps, boost, loops, and different types of obstacles - RACE 50+ Awesome Race cars that suit in your custom tracks. Rally car, monster truck, post-apocalypse car, futuristic car, is waiting for you to collect! - BLAST OFF of nitro boosters, fast loops, and raging jumps to stunt on your custom track - COLLECT all race cars and compete in any track type you like - UPGRADE of race cars to improve your speed! - CHALLENGE the world in your custom track that you have made! - SHARE your custom track and be the best track designer!