1. Introduction of the game:
Design Home is an immersive interior decoration game that challenges players to become the best interior designers by decorating and furnishing various rooms using a real-world catalog of high-end furniture and decor brands. With its engaging gameplay and realistic graphics, Design Home not only lets players express their unique style but also offers them a platform to harness their design skills.

2. All characters and levels of the game:
The game primarily focuses on inanimate objects and interior spaces, rather than characters. Players themselves act as the main 'character' as they interact with the game, making design decisions to advance through levels. The levels in Design Home are presented as a series of design challenges, each with its own unique requirements, client briefs, and themes ranging from contemporary urban living rooms to beachfront villas, providing a wide array of environments to design.

3. What attracts users most to the game:
What draws users to Design Home is its high-end, realistic furniture and accessories that can be used to decorate the spaces. The game taps into the user's creativity and offers an impressive collection of real-life items from top brands. Furthermore, the social aspect of voting on other players' designs and seeing how your designs rank adds a competitive edge to the game that keeps users engaged.

4. Why it is popular:
Design Home's popularity stems from the satisfaction it offers to the aspirational interior designer in everyone. It's a unique blend of creativity, realism, and social interaction that strikes a chord with those interested in home decor. The ease of use, coupled with the aesthetically pleasing design options, increases its appeal among a broad range of players.

5. When the game was released and how many versions are currently available:
Design Home was released on November 15, 2016. Since then, the game has seen various updates and improvements. While officially there is one continuously updated version of the game, with each substantial update, the game might feel like a new version to regular players.

6. The most difficult part of the game:
One of the most challenging aspects of Design Home is managing the in-game currency and resources. Players must strategically choose their items to meet the design brief while balancing their budget, which adds an element of financial strategy to the game.

7. Strengths and weaknesses of the game:
Strengths of the game include its high-quality graphics, extensive catalog of real-life furniture, and the ability to unleash creativity. Yet, a significant weakness can be the reliance on in-app purchases for progress, which might deter players not willing to spend real money.

8. What other games have been developed by the same developer:
Design Home is developed by Crowdstar, a subsidiary of Glu Mobile. Crowdstar is also known for creating other popular games such as Covet Fashion, a fashion styling and dress-up game that shares some social and aesthetic gameplay elements with Design Home. Glu Mobile, the parent company, has developed a variety of games across different genres, including Kim Kardashian: Hollywood and MLB Tap Sports Baseball.