1. Introduction of the game:
Mobile Strike is a highly immersive and action-packed mobile strategy game that transports players into a world of modern warfare, tactical alliances, and global domination. As a commander, players must build and expand their own military bases, train armies, and strategize to outsmart and outmaneuver opponents on a global scale.

2. All characters and levels of the game:
In Mobile Strike, players have the opportunity to control various characters, each with their own unique abilities and skills. These characters range from infantry soldiers and armored vehicles to air support and tactical specialists. The game also features multiple levels that progressively become more challenging, offering a dynamic and intense gaming experience.

3. What attracts users most to the game:
Mobile Strike's captivating gameplay and realistic graphics are what primarily attract users to the game. It combines elements of strategy, action, and resource management, providing a comprehensive and satisfying gaming experience. The ability to form alliances and engage in multiplayer battles against other players from around the world also adds to the game's appeal.

4. Why it is popular:
One of the primary reasons for Mobile Strike's popularity is its addictive and competitive nature. The constant updates and new features that continue to be introduced keep players engaged and excited to come back for more. The game also fosters a strong sense of community, allowing players to interact and collaborate with each other, further enhancing its popularity.

5. When the game was released and how many versions are currently available:
Mobile Strike was initially released in 2015 by the developer Epic War LLC. Since its launch, the game has seen numerous updates and improvements, with new features and content continually being added. As of now, there are multiple versions available, catering to different aspects of gameplay and providing players with a range of choices.

6. The most difficult part of the game:
The most challenging aspect of Mobile Strike lies in strategic decision-making during battles. Players must carefully plan their attacks and defenses, considering various factors such as troop composition, resource management, and base layouts. The ability to anticipate opponents' moves and adapt to changing circumstances poses a significant challenge for players.

7. Strengths and weaknesses of the game:
One of the main strengths of Mobile Strike is its immersive gameplay and visually stunning graphics, which enhance the overall gaming experience. Additionally, the presence of a vibrant and active player community fosters a sense of camaraderie and competition. However, the game does have a relatively steep learning curve, and some players may find it overwhelming at first. Additionally, the game's reliance on in-app purchases may be seen as a weakness by some players.

8. Other games developed by the same developer:
Epic War LLC, the developer of Mobile Strike, has a proven track record in creating popular mobile games. Alongside Mobile Strike, they have also developed other successful games such as Game of War: Fire Age and Final Fantasy XV: A New Empire. These games share similar gameplay mechanics and offer unique gaming experiences to capture the interest of a diverse player base.