The story of Grandia HD Collection is one of friendship and self-discovery. Players take control of a young man named Ryuga, who sets out on a journey to find his missing childhood friend, Clive, in the world of Grandia. Along the way, he meets new friends and allies, including the mysterious woman, Faust, and the old sage, Bahn, as they uncover the secrets behind Grandia's mysterious energy known as "The Luminous." The fate of their world hangs in the balance, and Ryuga must use his wits and courage to save it.
Gameplay in Grandia HD Collection is an RPG that features a unique blend of exploration, turn-based battles, and character customization. Players can explore the overworld, interacting with non-playable characters (NPCs) and discovering new locations. In battle, players can switch between a variety of party members, each with their own unique abilities and strengths.