Duet Night Abyss: How to Unlock New Characters

What to know

• Progress the main story to unlock core systems like Covert Commissions and snag several characters for free along the way.
• Farm Secret Letter Clues daily to buy Letters, then use them in missions to collect 30 Thoughts per character for unlocking.
• Events like Immersive Theatre boost drops for new characters, making targeted farming efficient.
• Prioritize one character at a time to hit level 40 quickly and maximize early-game rewards.

As you dive into Duet Night Abyss on its launch day, October 28, 2025, you'll find a refreshing shift: no gacha mechanics for characters. Instead, you earn every operative through smart progression and repeatable activities, ensuring your squad grows with your playstyle. Whether you're soloing missions or teaming up, here's how you expand your arsenal step by step.

Characters you gain from the main storyline

Pushing through the narrative not only introduces the game's Warframe-inspired combat and anime flair but also hands you a solid starting lineup without extra grinding. You unlock these operatives automatically as you complete key chapters:

These seven form your launch roster, giving you diverse roles like tanks and DPS right away. Focus here first—it opens the hub and daily systems you need for broader unlocks.

Gathering secret letter clues efficiently

Secret Letter Clues are your currency for targeting specific characters beyond the story. You spend 10 Clues per Secret Letter in the Shop's Covert Commissions tab, and each Letter funnels you toward that operative's Thoughts. Aim for the 15 free Clues from dailies each day to keep momentum.

Reliable sources for clues

You collect Clues passively while exploring, but here's where to hunt them actively:

This setup lets you stockpile without burnout—treat it like a daily ritual to unlock one new face every few days.

How to run covert commissions for thoughts

Once you've got a Secret Letter, head to the Combat menu for Covert Commissions—these hourly-cycling instances are your Thoughts generator. You select a Letter before starting, complete the run (solo or co-op), and pick from tiered rewards at the end. Gold tier nets 10 Thoughts, silver gives 2, and bronze offers EXP materials instead. Stack six rewards per Letter for best odds.

Step-by-step guide to a commission run

Step 1: Unlock and access the mode

Finish the main story's early chapters to reveal Covert Commissions in your Combat tab. If you're just starting, this takes about an hour of play.

Step 2: Acquire and equip a secret letter

Open the Shop via the NPC, switch to the Covert Commissions tab, and spend 10 Clues on your target's Letter. Equip it from your inventory before queuing.

Step 3: Queue and complete the mission

Matchmake or go solo—missions rotate types hourly, like stealth or boss fights. Use your current team to clear objectives, adapting to enemy patterns with dodges and combos.

Step 4: Claim thoughts rewards

At completion, choose from three options. Prioritize any gold or silver Thoughts for your character; reroll if needed by replaying.

Step 5: Track progress toward 30 thoughts

Return to the Armoury screen, hover over the character, and hit Reminiscence in the bottom-right corner. Spend your haul here—extras unlock Intron bonuses for stats.

Repeat this loop, and you'll see unlocks in 3-5 solid sessions per character. Pro tip: Co-op speeds clears, especially for tougher cycles.

Tapping into event challenges for secret letters

Why farm Clues when events drop Letters directly? These rotate but align with new character banners, skipping the Shop step.

Nocturnal echoes and immersive theatre

• Nocturnal Echoes: Story-mode echoes that reward random Letters—great for variety. Unlocked mid-campaign; run dailies for steady drips.
• Immersive Theatre: Focuses on the latest operative, like a debut banner boost. Clears here guarantee higher drop rates for that character's Letter, perfect if you're chasing meta picks.

Psyche stands out as a free Shop purchase here—no Thoughts needed, just claim it outright. Log in daily during launch events for extra pulls.

Assembling a balanced squad on a budget

With Duet Night Abyss emphasizing free progression, you can craft meta teams without premium currency—though it's there if you want shortcuts like Bard’s Tome passes. Start with story unlocks for coverage, then farm Rebecca for DPS or Truffle & Filbert for support. As of October 2025, no balance patches have hit yet, so early tier lists favor versatile picks like Outsider. Experiment in practice modes to find your groove.

Crafting Teams That Echo Your Playstyle

You've got the tools to roster up without barriers—dive into commissions today, and watch your abyss crew duet in harmony. Consistent dailies turn grinding into growth, so pace yourself and enjoy the symphony of unlocks.