1. Introduction of the game:
Clash Royale is an engaging and addictive mobile strategy game that offers players an immersive and competitive experience. Developed by Supercell, this game combines elements of tower defense, collectible card games, and multiplayer online battle arenas, resulting in a unique and thrilling gameplay experience.

2. All characters and levels of the game:
Clash Royale features a vast array of captivating characters and levels. Players can collect and upgrade various cards representing troops, spells, and defenses, each possessing distinct abilities and strategies. These appealing characters range from charismatic knights, formidable dragons, and sneaky goblins, to powerful wizards, cunning witches, and mighty giants. As players progress through the game, they unlock and explore new arenas, each presenting different strategic challenges and opportunities.

3. What attracts users most to the game:
One of the primary factors that highly attracts users to Clash Royale is its competitive and real-time multiplayer aspect. Players can challenge opponents from around the world in intense head-to-head battles, aiming to destroy their opponents' towers while defending their own. The game also incorporates skillful tactics and strategic decision-making, allowing players to showcase their abilities by deploying their troops and spells strategically.

4. Why it is popular:
Clash Royale has gained immense popularity due to its engaging gameplay, captivating characters, and highly competitive nature. The game constantly provides new content, updates, and challenges, keeping players invested and eager to progress. Additionally, the game fosters a vibrant and active community, encouraging social interaction and friendly competition among players. Its accessibility on both iOS and Android platforms has further contributed to its popularity, allowing a wide range of users to enjoy the game.

5. When the game was released and how many versions are currently available:
Clash Royale was initially released on March 2, 2016. Since then, multiple updates and enhancements have been introduced, refining the game's mechanics and introducing new features. Currently, Clash Royale is available in its latest version, which has undergone numerous improvements and refinements to provide players with the best possible gaming experience.

6. The most difficult part of the game:
One of the most challenging aspects of Clash Royale is its steep learning curve and the need for strategic thinking. Mastering the art of troop deployment, timing of spells, and managing elixir resources are crucial to success. The game requires players to adapt their strategies dynamically, based on their opponents' moves, thus intensifying the tactical depth of gameplay.

7. Strengths and weaknesses of the game:
Clash Royale's strengths lie in its captivating gameplay, competitive multiplayer battles, and the constant addition of new content and updates. The game's vibrant and active community provides opportunities for social interaction and friendly competition. However, some players may find the presence of in-app purchases as a potential weakness, as it can impact competitive balance and progression for those who do not wish to spend money on the game.

8. What other games have been developed by the same developer:
Supercell, the developer of Clash Royale, is renowned for creating other highly popular mobile games. Some notable titles developed by Supercell include Clash of Clans, Hay Day, Boom Beach, and Brawl Stars. Each of these games has garnered a significant player base and has contributed to the developer's reputation for delivering engaging and enjoyable gaming experiences.