1. Introduction of the game:
Embark on interstellar adventure with Star Trek Fleet Command, a mobile strategy game that immerses players in the iconic and expansive Star Trek universe. With a unique blend of role-playing game (RPG) progression and real-time battles, it offers the chance to explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before, directly on your mobile device.

2. All characters and levels of the game:
Star Trek Fleet Command boasts a galaxy of characters from across the Star Trek series, including fan favorites like Captain Kirk, Spock, and Captain Picard. Players can recruit and level up these characters, known as officers, to strengthen their fleets and outpost. The game is divided into various levels, where players expand their starbases, venture through different star systems, and engage in PVE and PVP battles to gain resources and prestige in the vast universe.

3. What attracts users most to the game:
Users are drawn to the game by the chance to engage in an authentic Star Trek experience that includes forging alliances, waging war against opposing factions, and discovering an ever-evolving narrative that's rich in Star Trek lore. The strategic depth and the persistent open-world nature of the game provide an immense scope for personalization and strategy.

4. Why it is popular:
Star Trek Fleet Command's popularity stems from its effective combination of popular elements from the Star Trek franchise with compelling strategy gameplay. It appeals not only to fans of the series but also to newcomers interested in space exploration and sci-fi adventures. Its engaging game mechanics, coupled with stunning graphics and a familiar setting, make it a standout title in the mobile gaming space.

5. When the game was released and how many versions are currently available:
Star Trek Fleet Command was released on November 29, 2018. Since its launch, the game has received numerous updates and expansions that have added new content and features. Currently, there is one continuously updated version of the game with multiple expansions, rather than separate version releases.

6. The most difficult part of the game:
One of the most difficult aspects of the game can be managing alliances and navigating the competitive PVP landscape. As territories and resources become more coveted, sustaining and defending your starbase while expanding your influence requires strategic insight, diplomacy, and sometimes quick tactical reactions.

7. Strengths and weaknesses of the game:
Strengths of Star Trek Fleet Command include its extensive universe, strategic gameplay, and true-to-series characters and storylines. However, the game's weaknesses may be seen in the steep learning curve for new players, and a freemium model that can sometimes favor players who are willing to spend money on in-game purchases.

8. What other games have been developed by the same developer:
Star Trek Fleet Command was developed by Scopely, a mobile games company known for creating engaging and immersive IP-based and original games. Other notable titles developed by Scopely include "The Walking Dead: Road to Survival," "WWE Champions," "Looney Tunes World of Mayhem," and "MARVEL Strike Force."