World's Biggest Jigsaw is a free puzzle game available for Android devices. The game, developed by AppyNation Ltd., features 400 picture puzzles that range from cute animals to famous places, people, food, and transport. The game's objective is to complete all 400 puzzles to reveal the Secret Picture, and along the way, collect trophies, achievements, and quest rewards.

The game offers an extra challenge to players by allowing them to replay their favorite puzzles with up to 100 pieces. This feature makes the game more exciting and engaging for puzzle enthusiasts. There are also 45 trophies, 57 quests, and 10 achievements to unlock, making the game more challenging and rewarding.

Overall, World's Biggest Jigsaw is an excellent puzzle game that provides hours of fun for the whole family. It is easy to navigate and has a user-friendly interface. If you encounter any issues or have any questions about the game, you can contact the developer through their email or social media pages.