Siblings War - Cleaning Day is a game that revolves around Kylie and her brother Alex, who are tasked with cleaning the house. The game offers a range of mini-games, including pillow fights, whack-a-mole, and more. The objective of the game is to get higher scores than Alex in each game. Players can also prank their brother by adding special sauce to his sandwich and dress up their pet dog after giving it a shower. The game includes cleaning up the smelly toilet and having a happy pizza time with your brother.

Cool Tweens, the developer of the game, is a creative team that produces enjoyable games for tweens and teens. The game is free to play but contains in-game items that may require payment. By downloading the game, players agree to Cool Tweens' Privacy Policy and Terms of Use at cooltweens.net. The game may include third-party services for limited legally permissible purposes.

Overall, Siblings War - Cleaning Day is a fun-filled game that offers a range of mini-games and challenges to keep tweens and teens entertained for hours.