Conquering the Molten Fortress in The First Descendant requires strategic gameplay and understanding its mechanics, especially its unique immunity phase. This comprehensive guide will equip you with the knowledge to defeat this formidable foe, covering its weaknesses, attack patterns, and the lucrative rewards that await. Dive in to master the Molten Fortress encounter and emerge victorious.
Molten Fortress: An Overview of Strengths and Vulnerabilities
Before engaging the Molten Fortress, understanding its profile is crucial. This section breaks down its elemental affinities and destructible components, giving you a tactical edge.
Elemental Weaknesses and Resistances
Knowing the Molten Fortress’s elemental strengths and weaknesses is paramount for effective combat. Exploit its vulnerabilities and mitigate its resistances to maximize your damage output.
Weak Point Type | Crush |
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Attack Element | Fire Attribute |
Elemental Resistance | ・ Fire: Very Strong (Immune) ・Electric: Strong ・ Ice: Very Weak ・Poison: Normal |
Recommended Resistance | Fire Resistance 8,400 |





As indicated, Ice element attacks are exceptionally effective against the Molten Fortress, inflicting significantly increased damage. Conversely, Fire attacks are entirely ineffective, and Electric attacks are also heavily resisted. Therefore, equipping your Descendant with Ice-based abilities and weapons is highly recommended. While Poison deals normal damage, focusing on Ice will yield faster results. Preparing for battle also means considering your defenses. The Molten Fortress primarily uses Fire attacks, making Fire Resistance a valuable asset for survivability. Aim for a Fire Resistance stat of around 8,400 to mitigate incoming damage effectively.
Destructible and Removable Parts for Tactical Advantages
The Molten Fortress isn’t a monolithic entity; it has destructible and removable parts that can be targeted for strategic advantages during the fight.
Destructible Parts | ・Sensor, Core Cover, Helmet, Lower Jaw |
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Removable Parts | ・Core, Armor |
Targeting destructible parts like the Sensor, Core Cover, Helmet, and Lower Jaw can weaken the Molten Fortress, potentially reducing its attack power or exposing critical weak points. Furthermore, focusing on removable parts such as the Core and Armor can lead to significant damage multipliers once these defenses are stripped away. Understanding these parts allows for a more focused and efficient approach to combat, rather than simply attacking indiscriminately.
Mastering the Molten Fortress Fight: Step-by-Step Guide
Defeating the Molten Fortress hinges on understanding and countering its core mechanics, especially the rod-linking puzzle during its immunity phase. This section provides a detailed breakdown of the strategies you need to employ.
Key Strategies for Defeating Molten Fortress |
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Connect the Energy Rods During Immunity Neutralize Fireballs to Prevent Rod Reset Evade the Ground Flame Pillars Prioritize Attacks on the Core and Head Manage the Roly-Poly Minions |
Linking the Energy Rods During the Immunity Phase
As you inflict damage on the Molten Fortress, its Frenzy Meter will gradually fill. Once full, it will move to the center of the arena and initiate its immunity phase, summoning six energy rods around the perimeter. Breaking this immunity is the key to continuing the fight. To dispel the immunity, you must successfully link all the energy rods together.
Each rod has a terminal in its center that you can shoot. Shooting these terminals rotates an arrow indicator. Your objective is to shoot each terminal until all arrows are pointing to the right. When two rods are correctly aligned, you’ll see a visible electrical line connecting them. Successfully connecting all six rods will break the Molten Fortress’s immunity, allowing you to resume your attack. This rod-linking mechanic is the central puzzle of the encounter, requiring coordination and focus under pressure.
Countering Fireballs to Maintain Rod Alignment
While you are working on aligning the energy rods, the Molten Fortress will launch fireballs towards them. These fireballs pose a significant threat because they can overcharge the rods, causing them to reset. Overcharging is indicated by a set of bars appearing beneath the rod terminals.
If a rod becomes overcharged, its terminal will revert to its default arrow direction, undoing your progress. Therefore, prioritizing the destruction of these fireballs is crucial during the immunity phase. Focus fire on the incoming fireballs to prevent them from reaching the rods and forcing a reset. Effective fireball management is as important as correctly aligning the rods themselves.
Evading the Rising Flame Pillars
Throughout the immunity phase, and sometimes during regular combat, the Molten Fortress will summon flame pillars that erupt from the ground. These pillars are easily telegraphed by ground markers, giving you time to react.
These flame pillars inflict substantial fire damage if you are caught in their area of effect. The key to avoiding them is constant movement. Pay attention to the ground indicators and reposition yourself to safe zones as needed. While they are damaging, their predictable nature makes them relatively easy to avoid with proper awareness.
Targeting the Core and Head Weak Points
For maximizing damage output during the fight, focus your attacks on the Molten Fortress’s weak points: the Core and the Head. These areas are significantly more vulnerable than other parts of its body.
Concentrating your firepower on the Core and Head will substantially reduce the time it takes to defeat the Molten Fortress. While other parts can be damaged, prioritizing these weak points ensures the most efficient use of your ammunition and abilities.
Managing the Summoned Roly-Poly Minions
During the Molten Fortress encounter, especially during its immunity phase, it will summon waves of Roly-Poly enemies. These minions, while not directly threatening to the boss, can be a nuisance and distract you from the main objective.
It is advisable to deal with the Roly-Polys promptly. They can obstruct your line of sight to the rod terminals and, more importantly, they drop valuable recovery items and ammunition when defeated. Eliminating them not only clears the battlefield but also sustains your resources during the prolonged fight.
Molten Fortress: Loot and Reward Breakdown
Triumphing over the Molten Fortress yields valuable rewards in the form of Material Patterns, crucial for crafting powerful gear and items. Here’s a breakdown of the potential loot:
Material Pattern | Potential Drops |
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Amorphous Material Pattern: 124 | ・Ultimate Ajax Spiral Catalyst Blueprint (6% Drop Rate) ・Gley Code (10% Drop Rate) ・Crystallization Catalyst Blueprint (20% Drop Rate) ・Restored Relic Polymer Syncytium Blueprint (32% Drop Rate) ・Perforator Synthetic Fiber Blueprint (32% Drop Rate) |
Amorphous Material Pattern: 125 | ・Energy Activator Blueprint (6% Drop Rate) ・Ultimate Viessa Code (10% Drop Rate) ・Yujin Spiral Catalyst Blueprint (20% Drop Rate) ・Piercing Light Synthetic Fiber Blueprint (32% Drop Rate) ・Wave of Light Polymer Syncytium Blueprint (32% Drop Rate) |
Amorphous Material Pattern: 126 | ・Ultimate Gley Code (6% Drop Rate) ・Ajax Spiral Catalyst Blueprint (10% Drop Rate) ・Crystallization Catalyst Blueprint (20% Drop Rate) ・Divine Punishment Polymer Syncytium Blueprint (32% Drop Rate) ・Enduring Legacy Synthetic Fiber Blueprint (32% Drop Rate) |
Amorphous Material Pattern: 127 | ・Energy Activator Blueprint (6% Drop Rate) ・Esiemo Spiral Catalyst Blueprint (10% Drop Rate) ・Afterglow Sword Nano Tube Blueprint (20% Drop Rate) ・Kyle Stabilizer Blueprint (32% Drop Rate) ・Blue Beetle Blueprint (32% Drop Rate) |
These Material Patterns are essential for crafting various Blueprints, including powerful weapon enhancements and character upgrades. Defeating the Molten Fortress is a worthwhile endeavor for acquiring these valuable resources, contributing significantly to your progression in The First Descendant.
Further Resources for The First Descendant
Expand your knowledge and conquer more challenges in The First Descendant with these related guides:
Void Intercept Battle Guides
Normal Difficulty Boss Guides |
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Grave Walker |
Dead Bride |
Executioner |
Swamp Walker |
Hard Difficulty Boss Guides |
— |
Devourer |
Dead Bride |
Swamp Walker |
Frost Walker |
Gluttony |
Continue your journey through The First Descendant and overcome every obstacle with these detailed boss guides, enhancing your gameplay experience and maximizing your rewards.