brigandine abyss nations: Story Mode & Mission Guide

BRIGANDINE ABYSS presents its continent through competing nations, each shaped by different beliefs, objectives, and destinies. The central conflict is the advance of the Neo Abyssloa Empire, whose tyranny and world-devouring darkness force six opposing nations to rise against it.

The most important distinction is between the two main modes. Story Mode gives you a structured campaign for each of the six nations that stand against the empire. Mission Mode expands the scope by allowing you to select one of 24 nations across the continent and pursue a specific objective.

The six Story Mode nations are the primary resistance to the Neo Abyssloa Empire. The official overview establishes their number and role, but the available reference does not provide a complete list of their names. For accurate wiki navigation, use each nation’s dedicated page when its official profile is available rather than assuming that every Mission Mode nation belongs to the same narrative group.

Story Mode is the clearest entry point for understanding the world of BRIGANDINE ABYSS. Each of the six campaigns represents a nation standing against the empire, making this mode useful when you want narrative context alongside tactical battles.

Mission Mode is more objective-driven. It includes 24 nations spread across the continent, and each selection comes with a distinct mission type. Possible goals include unifying the continent, strengthening strongholds, collecting designated items, collecting monsters, gathering allies, repaying debts, and defending strongholds.

Mission objectives change the value of common actions. In a unification mission, expansion may be the central measure of progress. In a defense mission, occupying more territory is less important than keeping key strongholds secure. A collection mission can also reward patience because rushing into a battle may divert leaders from exploration or recruitment.

Mission Mode also includes short stories featuring characters from each of the 24 nations. This makes the mode more than a collection of isolated objectives: it is a way to see how different nations and characters fit into the wider continent.

Nation performance depends on how leaders command monster units. A leader can direct multiple monsters, while different units specialize in close-range or long-range combat. Each squad may contain up to five monsters, but the leader determines how those monsters can be arranged.

This structure makes the leader more than a strong individual unit. If a leader is defeated, the entire squad is forced to retreat with that leader. Protecting commanders is therefore a central part of nation strategy, particularly when a mission requires you to defend a stronghold or preserve a limited roster.

Affinity is one of the most useful tools for gaining an advantage. Assess attributes, characteristics, skills, and equipment together rather than judging a unit by one statistic. A close-range leader may need durable monsters that can hold threatened spaces, while a ranged composition may gain more value from safe positioning and clear attack lanes.

Class changes provide another growth path. When a leader or monster reaches the required level, it may be able to change class and become stronger. Because the source material does not define every class requirement, treat class change as a progression opportunity to investigate on the relevant unit page rather than assuming a universal level or result.

Three known examples illustrate how monster abilities can influence a nation’s battle plan:

The Demon example shows why powerful effects require a cost assessment. A squad-wide elemental change may be valuable in the right composition, but the reduction to Magic Defense can make the formation more vulnerable. Compare the effect with the battlefield, enemy pressure, and your available defensive tools before committing.

Strongholds are the economic and logistical foundation of a nation. Materials can be used to level up controlled strongholds, providing bonuses to your units. This creates a direct connection between territorial control and army quality: holding a location is valuable, but improving it can make future battles more manageable.

Leaders who do not join battles can be sent on Explorations. These assignments can return resources, money, and experience points. Exploration is especially important for missions involving stronghold development, debt repayment, or collection because it can support progress without exposing every leader to combat.

Strongholds also allow you to hire additional leaders and monsters. Recruitment increases the number of available squads or fills gaps in your roster, while the traveling merchant provides weapons and armor for army equipment.

A practical development loop is to alternate between military pressure and infrastructure. Deploy your strongest leaders where the mission demands action, then use idle leaders to explore. Spend materials on strongholds that support the next likely battle instead of upgrading randomly across the map.

The traveling merchant adds another layer to nation preparation. Weapons and armor can outfit the army for upcoming battles, so review equipment before a major engagement. A squad that survives because of better equipment preserves both the leader and its assigned monsters, reducing the need to rebuild after a failed push.

Battles take place on a hexagonal grid, making positioning a primary concern. Safe spaces, threatened spaces, height differences, movement restrictions, terrain effects, and special obstacles can all change the value of a move.

Before attacking, identify which units can reach your leader, which hexes limit movement, and whether height or terrain alters the exchange. Long-range attacks, area-of-effect magic, and status ailments can influence the shape of the engagement, but they are most effective when the squad is positioned to use them safely.

A leader should rarely advance alone. Since defeat forces the full squad to retreat, a commander caught outside monster support can lose both momentum and territory. Keep the group organized, use monsters to control approach routes, and avoid trading the leader for a single enemy unit unless the mission makes that exchange worthwhile.

Skills also reward deliberate timing. Some abilities deal direct damage, while others affect areas or inflict status ailments. Combine these tools with affinity and formation choices. For example, an area effect is more useful when enemies are forced into a narrow route, while a status ailment can be more valuable against a durable target than against a unit already close to defeat.

Use the battlefield to support the nation’s objective. A unification campaign may require controlled aggression, while a stronghold defense mission rewards patience and layered positioning. The best move is the one that improves both the immediate battle and the next strategic turn.

For additional official system details, consult the BRIGANDINE ABYSS battle and nation systems page on NIS America. It covers Story Mode, Mission Mode, battlefield positioning, affinities, skills, strongholds, exploration, recruitment, and the traveling merchant.