A young boy from the town Kyaro, adopted and raised by a martial artist together with his sister Nanami, now serves in a Highland army, in a youth squad, together with his best friend Jowy. Their camp is attacked during the night. The two friends escape and jump down from a high cliff into a river. Soon the two become involved in a political struggle, as several nations seek an alliance against a powerful country led by an insane, bloodthirsty prince. What will destiny bring to the young heroes? What will they achieve in their lives? Will they fight together or will their paths be separate from now on?
Suikoden II is a Japanese-style role-playing game with a story that focuses on war, friendship and betrayal. As its predecessor, it has a goal to build an army and participate in a war, defending the lives of the innocents. It's possible to recruit 108 characters (Stars of Destiny), as well as build and customize a castle that serves as headquarters for the army.
The main bulk of the gameplay is traditional RPG exploration and character growth. There are also turn-based party combat with up to six active player-controlled combatants, and strategic battles on a grid field where the player has to move squads to surround and defeat enemies. Characters can equip runes that allow them to cast limited magic spells, with three runes possible per character. Items are shared by the party rather than being individual inventories.
There are various mini-games available, some of which are only accessible if specific characters are recruited.