1. Introduction of the game:
Color by Number: Coloring Game is a relaxing and creative game that allows users to bring beautiful artworks to life through the simple act of coloring. With a wide selection of stunning illustrations, ranging from intricate mandalas to adorable animals, this game provides a soothing and immersive artistic experience.

2. All characters and levels of the game:
The game features a vast array of captivating characters and levels to keep players engaged. From playful kittens to majestic landscapes, users can choose their favorite designs and color them with ease. Each level presents a new and unique artwork, ensuring variety and endless possibilities for creativity.

3. What attracts users most to the game:
The game's appeal lies in its simplicity and ability to provide a much-needed escape from daily stresses. Its captivating artwork, coupled with the therapeutic satisfaction of filling colors, entices users seeking relaxation and a creative outlet. The intuitive user interface and vibrant color palettes further enhance the overall user experience.

4. Why it is popular:
Color by Number: Coloring Game enjoys popularity due to its ability to cater to a wide audience. It appeals to both adults and children, allowing people of all ages to indulge in the joy of coloring. Additionally, the game's seamless integration with mobile devices makes it easily accessible, ensuring its popularity among those seeking entertainment on-the-go.

5. When the game was released and how many versions are currently available:
Color by Number: Coloring Game was first released in [Year]. Since then, it has undergone numerous updates and enhancements to keep up with user demands. Currently, [Number] versions of the game are available, each bringing new features, illustrations, and improvements to the overall gameplay.

6. The most difficult part of the game:
While Color by Number: Coloring Game is designed to be a relaxing experience, some users may find certain levels challenging due to intricate designs and prominent color differentiations. The most difficult part of the game lies in ensuring accuracy and precision while coloring these intricate sections, requiring patience and a steady hand.

7. Strengths and weaknesses of the game:
One of the strengths of Color by Number: Coloring Game is its wide selection of high-quality illustrations, which are a treat for the eyes. The game's intuitive controls and user-friendly interface also provide a seamless coloring experience. However, some users may find the limited color palette restrictive or desire additional features such as advanced color blending.

8. What other games have been developed by the same developer:
The same developer has created a range of other popular games, including puzzle games, strategy games, and casual games. Some notable titles from the developer include [Game 1], [Game 2], and [Game 3], all of which have garnered positive reviews and substantial user bases.