1. Introduction of the game:
League of Legends, often referred to as LoL, is a highly immersive and competitive online multiplayer game that has captured the attention of millions of players worldwide. Developed by Riot Games, this strategic battle arena game has become a global phenomenon since its release.

2. All characters and levels of the game:
In League of Legends, players can choose from a vast roster of over 150 unique and diverse champions, each possessing their own distinct abilities, skills, and playstyles. These champions are divided into various roles such as tanks, mages, assassins, marksmen, and supports, ensuring a diverse and engaging gameplay experience for players. Additionally, the game offers multiple levels and maps, which further enhance the strategic aspects and provide players with different environments to showcase their skills.

3. What attracts users most to the game:
One of the major attractions of League of Legends is the intense multiplayer battles it offers. Whether engaging in 5v5 team-based matches or playing in solo mode, players face exciting challenges, constantly evolving strategies, and intense competition. The complexity of the gameplay, strategic decision-making, and the opportunity to showcase individual skill and teamwork have all contributed to the game's massive popularity.

4. Why it is popular:
League of Legends has achieved immense popularity due to its continuously evolving gameplay and engaging updates. The game provides a dynamic competitive scene, hosting international tournaments and professional leagues that showcase the best players and teams. Additionally, Riot Games has actively fostered a strong and active community, organizing events, and introducing new content regularly, which helps to sustain and grow the game's popularity.

5. When the game was released and how many versions are currently available:
League of Legends was initially released on October 27, 2009. Since then, Riot Games has continuously improved and expanded the game. Currently, there are multiple versions of the game available, including the original version, as well as regional variations and updates catering to different preferences and player bases.

6. The most difficult part of the game:
The most challenging aspect of League of Legends lies in mastering the game's complex mechanics, strategizing effectively, and making split-second decisions during intense battles. Understanding each champion's unique abilities, strategically coordinating with teammates, and adapting to ever-changing gameplay scenarios can be a daunting task for new players.

7. Strengths and weaknesses of the game:
One of the significant strengths of League of Legends is its high level of depth and complexity, allowing for continual skill improvement and varied gameplay experiences. The game's graphics, sound design, and overall aesthetic also contribute to its appeal. However, some players may find the steep learning curve and sometimes toxic community to be challenging, requiring patience and perseverance.

8. What other games have been developed by the same developer:
Riot Games, the developer behind League of Legends, has also released other popular titles. Notably, they have developed games like Teamfight Tactics, Legends of Runeterra, and Valorant – each offering unique gameplay experiences within their respective genres. This diverse range of games showcases Riot Games' commitment to innovation and player satisfaction.