Some time before the beginning of the game, three dark gods (Death, Barbara and Saruin) wage a war against the high god Arol. They were unsuccessful, and all but Saruin were beaten. Instead, Arol locked him away with 10 gemstones, which are then scattered across the Earth. By the beginning of the game, however, the world becomes populated with monsters, and Saruin threatens to return.
This is essentially the only common story element amongst the different characters of the game. Instead of one storyline, Romancing SaGa consists of eight separate characters, each with different introductions and stories before they all come together to tackle the same quests.
Instead of being given a large overworld to explore, Romancing SaGa presents the player with an unexplorable world map with selectable locations you can explore. New locations are unlocked by talking to certain people, exploring other areas, or engaging in certain quests. Getting between other segments of the world map usually requires either passing through an area linking the two segments, or riding a boat between certain towns.
Romancing SaGa, much like other JRPGs of the time, employs a traditional turn-based
system of combat. However, unlike other RPGs, battles are not triggered through random encounters, but by approaching them on the map. The difficulty of the battle depends on the direction in which you approach them; it is better to sneak up from the sides or back than to engage in a direct attack. The same holds true for your enemies, who can change your in-battle formation by approaching you from the sides or back.
Formation plays an important role in battle, as it decides which characters can use which abilities. Bows, magic and certain abilities can be used from any position; spears can be used in the middle and front positions; and all other weapons and abilities can only be used from the front. Similarly, certain abilities can only hit certain rows of enemies. When all the characters in one row die, the next row moves up. The battle ends when all the combatants on one side die.
Unlike many other RPGs, battles do not end with players gaining experience toward level ups. Instead, each statistic levels up according to how that character fought. For example, heavy use of the bow will cause that character's bow proficiency to level up. Characters learn new abilities (and are able to use abilities more often) by leveling up the corresponding weapon. Magic is bought from certain shops in certain towns, but there are certain magic types that cannot coexist within the same character (ex: fire and water). Both spells and abilities draw from collective pools of points necessary to use the move, but only magic shows these points. However, unlike later games in the series, weapon levels are not tied to the characters, but to the weapons themselves, meaning that upgrading your equipment results in the loss of all abilities tied to that specific weapon.
To use items in battle, each character must equip them individually. In addition to usual potions and MP restoring items (which, oddly enough, come specific to each type of magic), Romancing SaGa is the only SaGa game to feature summons, gained through a certain quest. Rather than behaving like an attack, the summons behave more like special characters, taking the place of the entire party for a given number of turns.
Other gameplay mechanics
The maximum amount of gold you can carry at any given time is 9999 gold. However, upon selling an item that results in a gold count higher than 10000, the game gives you a jewel, equal to 10000 gold. Since you stop gaining gold when you hit 9999, it is imperative to sell an item as soon as you hit this cap. This quirk only applies to the SNES and Wonderswan versions; jewels are not present in the PS2 remake.
The game was released for three platforms: the SNES, the Wonderswan, and the Playstation 2. The Wonderswan version was just a port of the original version on the SNES, only with minor additions like a new boss battle against Barbara. Both of these versions were not released outside Japan. The Playstation 2 version, however, was not only released in other regions, but is essentially a different game. In fact, the game was released as Romancing SaGa: Minstrel Song in Japan, the subtitle being dropped in other regions. Although it follows the same plot as its predecessors, Minstrel Song features new quests, abilities, characters, and vastly different gameplay mechanics.