A free app for Android, by Julia Qian.

Tyrannosaurus Simulator is the ultimate survival simulator for your mobile device. This free survival game is based on the real-life evolution of the Tyrannosaurus Rex, the most vicious predator of the Mesozoic era. In this real-life simulator, you can explore the world of dinosaurs and experience the thrill of fighting them. You will also have to find food, water, and other resources to survive.

This is an evolution of the classic survival simulator. In this game, you will fight other dinosaurs, such as the Velociraptor, Iguanodon, Protoceratops, Stegosaurus, Triceratops, Spinosaurus, and many more. Aside from the gameplay, you will also enjoy this for its amazing 3D graphics and customization features.