ガイラルディア神話2 is the second installment in the Gaia Odyssey series and is a classic RPG game with standard gameplay. It offers various elements that are essential to RPG games such as different classes, a unique training system, and a quest system.

The game has a growth system based on the training level of each class, which allows players to customize their characters and enhance their abilities. After completing the game, there are additional features that players can explore, providing more gameplay opportunities.

While the game is free to play, players who want to enjoy the game to the fullest may want to purchase the "Story Unlock" from the adventure support menu. It is also possible to purchase items that can assist players in their adventures, but these are optional and not necessary to play the game.

The game has new features compared to its predecessor, Gaia Odyssey, such as new classes, a training system, an expanded selection of items in the weapon and item shops, and improved magic and physical resistance systems. The game also features an enhanced monster encyclopedia and new magic and skills for both enemies and allies.

Overall, Gaia Odyssey 2 is a great game for RPG enthusiasts as it offers classic gameplay with a few new elements that make the game even more enjoyable.