A free app for Android, by Games Evo.

Melon Playground is an action-packed free sandbox game. In this exciting, fun, physics-based game, you can play as a ragdoll and explore your surroundings. Create a world of your own and enjoy the physics-based adventures in this open-world sandbox game.

Here, you can build anything and everything you want, including vehicles, buildings, and various mechanisms. There are many different blocks and objects that you can use to build and create. There are also a lot of interesting and fun missions and challenges that you will encounter as you play.

This is a fun game that will help unleash your creativity.