In Melon Sandbox, the gameplay is simple yet engaging. You control the game with your mouse, clicking and placing items to bring your creative ideas to life. The game’s interface is intuitive, and once you enter the world of Melon Sandbox, you'll be greeted by a vast blank canvas ready for your imagination to run wild. You can select from a variety of props and weapons provided in the game. Whether it's constructing basic structures, building complex machines, or playing with various firearms and explosives, everything is under your control.

The game features a character called the Dummy, which serves as your test subject for various experiments. Dummies are essential for exploring the power of different tools and weapons, but they also play key roles in your creative stories. You can set their behavior patterns, making them interact with the environment in various ways. Whether you're staging dramatic gunfights or setting up epic explosions, the possibilities are endless.

Melon Sandbox encourages players to unleash their creativity without worrying about goals or missions. You can freely explore every corner of the game world, experiment with new combinations, and design unique scenes and stories. The game also supports multiplayer online mode, allowing you to invite friends to join in and create even grander experiences together. Whether you prefer building, destruction, or both, Melon Sandbox offers an open space for you to discover endless fun.