Hey Duggee: The Sandcastle Badge is a free mobile app for Android users developed by BBC Worldwide Ltd. This educational game is designed for children who love to play and learn at the same time. It features the popular animated TV show character, Duggee, who takes the Squirrels to a beach to build sandcastles. The objective of the game is to help the Squirrels earn their Sandcastle Badge by building a fortress made of sand.

The app is easy and fun to use with simple drag-and-drop, tapping and swiping motions. To build a sandcastle, the player must start by filling a bucket with wet sand and patting it down. Then, the player can lift the bucket to reveal a newly-constructed sandcastle. The player can then decorate the sandcastle with seaweed, shells, windows, doors, and other crazy decorations. Finally, the player can top off the sandcastle with a brightly colored flag of their own choice. Hey Duggee: The Sandcastle Badge is a great way for little ones to celebrate summer with Duggee and the Squirrels.