1. Introduction of the game:
BitLife is an innovative life simulator game that allows players to make choices and follow the life journey of a character from birth to death. Developed by Candywriter, LLC, this text-based game puts players in control of various life decisions, ranging from simple daily activities to major life-changing events. It uniquely combines role-playing, strategy, and storytelling elements to offer an immersive and often unpredictable gameplay experience.

2. All characters and levels of the game:
In BitLife, each character is the player's unique creation, starting as a baby with randomized potential attributes. There are no traditional levels as found in other games; instead, the game progresses through the character's lifespan, with the player making choices that influence the character’s various life stages including infancy, childhood, teenage years, adulthood, and old age.

3. What attracts users most to the game:
What captivates users is the sheer unpredictability and depth of choice available. Every decision can lead to a vast array of consequences, simulating real life's complexities and uncertainties. Players relish the ability to live vicariously through their characters, experiencing different paths and outcomes, whether it’s becoming a famous celebrity, acing a dream career, or engaging in more rogue-like behavior.

4. Why it is popular:
BitLife’s popularity can be attributed to its engaging and replayable nature, as no two lives are the same. Its humorous scenarios, combined with the opportunity to experiment with life choices without real-world repercussions, make it both a fun and sometimes poignant game. Social media influence has also played a role, with players sharing their most outrageous or fortunate life outcomes, sparking curiosity and interest among potential new players.

5. When the game was released and how many versions are currently available:
BitLife was originally released in September 2018. Since then, the game has been regularly updated with new content, features, and challenges. Currently, there have been numerous updates and versions, ensuring fresh gameplay experiences with each new release.

6. The most difficult part of the game:
One of the most challenging aspects of BitLife is managing the randomness of events and their impact on the character's life. Players often find that maintaining a balance between health, happiness, wealth, and relationships while responding to unexpected life events can be quite demanding.

7. Strengths and weaknesses of the game:
Strengths of BitLife include its comprehensive life simulation, the vast array of choices available to players, and the constant injection of new content through updates. However, weaknesses might include occasional repetitiveness, the simplistic text-based interface that might not appeal to all gamers, and a reliance on randomness that can sometimes feel frustrating or limiting.

8. What other games have been developed by the same developer:
Candywriter, the developer of BitLife, is also known for other mobile games such as "Letter Soup," "Word Solitaire," and "DogLife: BitLife Dogs." These games reflect the developer's penchant for creating engaging and entertaining puzzle and simulation experiences.