Gallery Coloring book and decor is a unique casual simulation game that combines coloring mechanics with home renovation and decorating elements. Players join protagonists Mia and Leo in renovating an old house and abandoned art gallery, coloring hundreds of high-quality paintings along the way. The game is stress-free and has no fail conditions, focusing solely on creative expression and story development. The gameplay loop involves coloring paintings to earn stars that can be spent on home decoration and story development. Players can customize multiple locations with different decor options and dress protagonists Mia and Leo in a variety of outfits, from princesses to firefighters. Regular in-game events provide new content, including exclusive paintings, decor items, and pets. The combination of paint by numbers, home design, and story development makes the game a fun game for those looking for a creative outlet.