1. Introduction of the game:
Grand Summoners is an epic role-playing game that immerses players in a world of fantasy and adventure. With its stunning graphics, captivating storyline, and strategic gameplay, this game takes players on an unforgettable journey to save the land from impending doom. As a summoner, players have the power to call forth legendary heroes and creatures to fight alongside them in thrilling battles that will test their skill and strategy.

2. All characters and levels of the game:
Grand Summoners boasts a diverse cast of characters, each with their own unique abilities and strengths. From valiant warriors to cunning mages, players can choose from a wide range of heroes to form their ultimate team. As they progress through the game's various levels and quests, players will encounter challenging enemies and bosses, each requiring a different approach to defeat.

3. What attracts users most to the game:
One of the key attractions of Grand Summoners is its deep and engaging gameplay. With its intricate battle system and strategic team-building mechanics, players are constantly challenged to optimize their team's composition and tactics. Additionally, the game regularly introduces new events and content, keeping players engaged and excited for more.

4. Why it is popular:
Grand Summoners has gained popularity among gamers due to its stunning visuals, captivating storyline, and addictive gameplay. The level of depth and strategy required to succeed in battles, combined with the thrill of unlocking and collecting powerful heroes, creates an immersive and addictive experience that keeps players coming back for more.

5. When the game was released and how many versions are currently available:
Grand Summoners was initially released in February 2018 and has since gone on to become a major hit in the gaming community. As of now, there have been multiple updates and versions of the game, each adding new features, characters, and storylines for players to enjoy.

6. The most difficult part of the game:
The most challenging aspect of Grand Summoners lies in the intricate battle system and the ability to strategically utilize each hero's skills and abilities. Players must carefully consider their team composition, gear, and timing of actions in order to defeat formidable opponents and progress through the game's more difficult levels.

7. Strengths and weaknesses of the game:
One of the strengths of Grand Summoners is its visually stunning graphics and immersive world, which truly brings the game to life. The diverse and ever-growing roster of characters also adds depth and excitement to the gameplay. However, some players may find certain aspects of the game, such as the difficulty spikes or the reliance on gacha-style summoning mechanics, as potential weaknesses.

8. Other games developed by the same developer:
Grand Summoners is developed by NextNinja, a renowned game development studio that has also created other popular titles such as Brave Frontier and Phantom of the Kill. These games share the same level of depth, captivating storytelling, and engaging gameplay that has become synonymous with the developer's reputation.