How To Upgrade and Forge Weapons in Duet Night Abyss

By Daniel Hidalgo | 2025-10-30 09:10:47
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Mastering your arsenal in Duet Night Abyss isn't just a side activity—it's the core of your strategic advancement. Wasting precious early-game resources on the wrong gear can hinder your progress for weeks. This definitive guide will walk you through the essential steps of not just finding powerful weapons, but also forging and upgrading them to dominate the battlefield.

Part 1: Securing Your Arsenal - How to Acquire New Weapons

Before you can power up a weapon, you first need to get your hands on one. Forget random drops; Duet Night Abyss features a targeted, albeit challenging, system for weapon acquisition.Method 1: The Blueprint Hunt via Covert CommissionsThe primary path to a specific weapon is through forging, which begins with a coveted Weapon Blueprint.
  • Step 1: Find Secret Letter Clues. These special items are your key to unlocking the Covert Commissions stages, where blueprints are rewarded. You can purchase them from the in-game shop, but be prepared for a grind—the drop rate for the blueprint itself is notoriously low.
  • Step 2: Visit the Blacksmith. Once a blueprint is in your possession, head to the Blacksmith. Here, you'll see a list of all the crafting materials required. A pro-tip: click on each material to see a description and often even its source, making your farming runs much more efficient.
  • A Crucial Warning: Blueprints are single-use. Once you forge the weapon, the blueprint is consumed. If you want to create a duplicate of the same weapon for skill upgrades, you must embark on the entire farming process again.
Method 2: Challenge the Weekly BossesFor those who prefer testing their might against formidable foes, Weekly Bosses offer another avenue.
  • Defeating these challenging enemies can reward you with Secret Letter Clues directly. Since each boss has a unique loot table, it's wise to research which one holds the key to the weapon you desire before you engage.

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Part 2: Reaching Maximum Potential - The Weapon Upgrade Path

Acquiring a weapon is only half the battle. To truly make it yours, you need toinvest in its growth through two parallel upgrade systems.

Path A: Leveling Up Your Weapon

This is the straightforward path to increasing your weapon's base stats like Attack and Defense.

  • The process is simple: gather the required enhancement materials and invest them into the weapon. The catch? The resource cost scales dramaticallyas the weapon's level increases. Prepare for a significant grindingsession if you aim to reach the maximum level cap.

Path B: Enhancing Weapon Skills (The Endgame Grind)

This is where your weapon transcends from being merely powerful to becoming a masterpiece. To upgrade a weapon's unique skills, you need to engage in the Smelting process.

  • The Key Requirement: A Duplicate Weapon. This is the most demanding part of the upgradesystem. You must obtain an identical copy of the weapon you wish toenhance.
  • The Process: Once you have the duplicate (which involves re-farming its blueprintand materials), you don't equip it. Instead, you feed it into theSmelting system to empower the original weapon's skills.

This creates a compelling endgame loop: you're constantly farming CovertCommissions and Weekly Bosses not just for new weapons, but for theduplicates needed to perfect the ones you already love.

By strategically navigating this cycle of forging and upgrading, you'llensure that every resource you spend is a direct investment towardbecoming an unstoppable force in the world of Duet Night Abyss.


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