1. Introduction of the game:
Welcome to Riding Extreme 3D, an adrenaline-pumping game that takes you on a thrilling ride through extreme landscapes! Get ready to experience the excitement of motorcycle racing at its best, as you navigate through challenging tracks filled with obstacles, jumps, and breathtaking stunts.

2. All characters and levels of the game:
In Riding Extreme 3D, players have the opportunity to choose from a diverse range of characters, each with their unique abilities and motorcycles. Whether you prefer speed, agility, or balance, there's a character to suit every style of play. As for levels, the game offers an extensive selection of tracks set in various stunning environments, from rugged mountainsides to treacherous deserts.

3. What attracts users most to the game:
What sets Riding Extreme 3D apart is its realistic gameplay and immersive graphics. The game perfectly captures the heart-pounding sensation of riding a motorcycle at high speeds, making players feel like they are truly on the bike. The inclusion of challenging obstacles and the ability to perform jaw-dropping stunts also adds to the game's allure.

4. Why it is popular:
Riding Extreme 3D has gained immense popularity due to its addictive gameplay and stunning visuals. The game's ability to strike the perfect balance between realism and excitement has captivated players of all ages and backgrounds. Moreover, its intuitive controls and challenging levels keep players engaged and motivated to push their limits.

5. When the game was released and how many versions are currently available:
Riding Extreme 3D was released in [year]. Since then, the game has successfully launched multiple versions, each offering improved graphics, new levels, and enhanced gameplay to keep the experience fresh and exciting for players.

6. The most difficult part of the game:
The most difficult part of Riding Extreme 3D lies in mastering the precise timing and coordination required to complete the daunting jumps and obstacles. Players must demonstrate exceptional skill in maneuvering their motorcycles to avoid crashes and successfully navigate through the treacherous tracks.

7. Strengths and weaknesses of the game:
Riding Extreme 3D boasts several strengths, including its realistic graphics, immersive gameplay, and a vast array of characters and levels to unlock. The game's weaknesses, if any, may lie in the steep learning curve for beginners and the potential for occasional glitches that could hinder gameplay experience.

8. What other games have been developed by the same developer:
As a renowned game developer, [Developer's Name] has also developed other exciting titles, such as [Game 1] and [Game 2]. Each game showcases the developer's commitment to delivering immersive experiences and entertainment to gamers worldwide.

(Note: The introduction can be customized further based on the actual details of the Riding Extreme 3D game and its developer.)