Duet Night Abyss Beginner Guide, Tips and Tricks

Starting out in Duet Night Abyss can feel overwhelming, with multiple systems unlocking at once—from fast-paced combat and team building to tracking down Secret Letter clues. This Beginner Guide highlights what to focus on from Day 1: key missions, efficient character unlocks, and smart resource management to avoid wasting stamina and time.

 

To make your first-day grind smoother, OSLink lets you play the PC version of the game directly on your phone. Run intensive content on your PC for top performance, then continue playing on mobile whenever you need to step away, no extra setup, no battery drain, just seamless gameplay wherever you are.

Getting Started: Day 1 Priorities

When you just started the Duet Night Abyss gameplay for the first time, there are a few important things you should do right away to get a strong start. Here’s what to focus on during your first day in Duet Night Abyss:

 

• Complete the Main Story and unlock the Beginner Guide: Try to complete the main story during your first day to kickstart your progress with understanding the basics. Then unlock the Beginner’s Guide that includes a list of tasks to complete and helps you know the best way to progress through the game.

• Choose Your Character and Weapon Smartly: Choose a character that matches your playstyle, for example, Phoxhunter for close-range sword combat, or Margie, who uses staffs for powerful ranged skills.

• Check Your Mailbox: Once you access the main menu, open your Mailbox. You’ll find beginner rewards and bonus items sent to you. Claim all of them to help you in your early game journey.

Unlock Your Characters First 

Characters are the main part of every battle in Duet Night Abyss. Since this game doesn’t have a gacha system, you’ll need to unlock characters in other ways. Here is the step by step process for unlocking the characters that you want from our Duet Night Abyss guide for beginner:

 

Collect Secret Letter Clues

• You can earn these by:

  • Completing Main Story and Side Story quests

  • Following the Beginner Guide

  • Earning Achievements

  • Participating in Events like Bon Voyage

Exchange Secret Letter Clues

• Once you have 10 Secret Letter Clues, go to the Shop → Convert Commissions section.

• Here, you can exchange them for the specific character you want.

Obtain Character Thoughts

• After exchanging, you’ll receive Secret Letters for that character.

• Then go to Combat → Commissions → Convert Commissions → Character.

• Take part in dungeon battles to collect Character Thoughts.

• You’ll need 30 Character Thoughts to fully unlock that character.

That’s all! Keep farming Secret Letter Clues early in the game to unlock your favorite characters faster.

Forge Your Weapons for the Characters

Each character in Duet Night Abyss has different types of weapons, and some even have special consonance weapons attached to their kit. Getting weapons works similarly to unlocking characters, you’ll need Secret Letter Clues to collect Weapon Blueprints. Here’s how to do it:

 

• Buy a Secret Letter (Weapon) using your clues.

• Go to Convert Commissions → Weapons.

• Then go to Combat → Convert Commissions → Weapons to collect the Weapon Blueprints for the weapon you want.

• Finally, go to the Blacksmith in Sanctuary to forge the weapon using the blueprints.

Master the Duet Night Abyss Combat

Duet Night Abyss features real-time third-person combat that mixes melee and shooting. It’s a skill-based system that uses dodges, skills, ultimates, and Sanity-based abilities. To master combat, you need to understand the Sanity system and learn the best techniques.

Sanity Based Attacks

Each character has three main attacks: Basic Attack, Skill Attack, and Ultimate Attack. Only Skill and Ultimate attacks use Sanity, while Basic Attacks do not.

 

You can see a yellow bar with a number under your Skill and Ultimate attacks. This is the Sanity bar, showing how much Sanity you have. Using Skill or Ultimate attacks will consume the amount of Sanity displayed in this bar.

Best Techniques

These are the best techniques that you can manage for better combats for your Duet Night Abyss early game:

 

• Hover in midair when using ranged weapons to stay safe and attack from above.

• Time your dodges carefully to avoid enemy attacks and save Sanity.

• Dash forward or sideways to evade enemy attacks and dodge effectively.

• Chain attacks by starting with Basic Attacks, then Skill Attacks, and finishing with Ultimate Attacks for massive damage.

• Use Helix Leaps to reach higher places and attack enemies from above.

Build Your Best Team

Here are some Duet Night Abyss tips to help you build the best team:

 

• Team Composition: Build your team around a Main DPS, a Supporter, and either a Healer or Sub DPS. A balanced team will perform better in battles.

• Weapon Types Matter: Each teammate can use melee or ranged weapons. Focus on which weapons are stronger and balance your team with both close-range and long-range fighters.

• Elemental Synergy: Using elemental advantages can greatly improve your team. There are six elemental classes, each strong against another. Exploit elemental weaknesses, especially against bosses:

  • Hydro – Strong against Pyro

  • Pyro – Strong against Anemo

  • Electro – Strong against Hydro

  • Anemo – Strong against Electro

  • Umbro – Strong against Umbro

  • Lumino – Strong against Lumino

For beginners who want a strong team at the start, here is the best example starter team:

Pro Tip: Want to explore and level up faster without relying on random teammates? OSLink makes it possible. Using its Multi-Instance Manager and Synchronizer, you can level up multiple accounts at once and handle co-op battles solo, letting you farm Character Thoughts and materials efficiently across several accounts, no waiting for others, no wasted time. It’s the perfect setup for players who want full control over their co-op runs and consistent resource farming.

Power Up Weapons with Demon Wedges

Demon Wedges in Duet Night Abyss are like artifacts or gear upgrades that enhance your character’s weapons. They improve specific stats such as ATK, Crit Chance/Damage, Sanity, or Skill Efficiency, making your weapons more effective in battles. Keep in mind that equipping them uses Tolerance Points.

 

When equipped, Demon Wedges can also provide set bonuses or unique effects that can significantly change how a battle plays out, giving you an advantage in tough fights.

You can get Demon Wedges to enhance your weapons by:

• Completing Main Story and Side Quests

• Farming Secret Letter Clues (same as acquiring characters)

• Participating in special events

Get Support from Geniemons

Geniemons are adorable elemental companions you can find during world exploration or dungeon battles in the Commissions. Each Geniemon has one active skill and one passive skill that help enhance your character in battles.

 

These Geniemons are element-specific and provide support mainly to characters of the matching element. Make sure to equip them with the right characters to get the full advantage of their skills in combat.

Conclusion

Your first day in Duet Night Abyss sets the foundation for everything ahead, unlocking key characters, crafting your first weapons, and learning the rhythm of combat and team synergy. To keep your early progression smooth, OSLink lets you enjoy the full PC experience wherever you are. Run the game on your PC, stream it to your phone with responsive touch controls, and keep exploring without overworking your device. It’s the perfect setup for new players who want efficient leveling, easy team management, and peak performance, anytime, anywhere.