Players alternate between Alm's and Celica's routes on a world map. Entering an enemy location begins a grid-based battle in which units move, attack, use magic or items, and exploit terrain.

Victory usually requires defeating all enemies or a designated boss. Units gain experience, promote through class changes at shrines, and may acquire new weapons or spells. Towns provide conversations and recruitment, while dungeons use a direct exploration view and can contain enemies, chests, and healing points.

Protect low-level units while allowing them to take safe finishing blows, since promotion timing and uneven experience strongly affect campaign difficulty.

Use terrain and defensive positions carefully, especially against archers and enemy magic. Explore towns and dungeons before advancing; recruitment, healing, chests, and optional encounters can substantially improve both armies.

Save before shrine promotions and major story battles. Class choices and spell access are difficult to reverse, so consider each unit's intended role before committing.