Duet Night Abyss launch guide — unlocks, modes, and Mystic Maze

Duet Night Abyss lands as a fast-paced hybrid action RPG with a dual-protagonist story set on Atlasia, a world where magic and machinery sit side by side. The combat is built around swapping between melee and ranged weapons on the fly, and progression is centered on farming and crafting rather than pulling characters. All characters and weapons are free to unlock, while cosmetics use chance-based purchases.

Release date and time (global)

Launch rolls out the evening of October 27 in the Americas and early October 28 elsewhere. Here are the major time windows:

The game is available on PC, Android, and iOS.

Download on PC (official launcher)

Grab the PC launcher from the official site’s download page to install and pre-download before you play.

Download from the official site

Download on Steam (PC)

If you prefer Steam for library management and updates, install the game from its store listing when it becomes available in your region.

Open the Steam store page

Download on Android

Install the mobile version on supported Android devices from Google Play.

Get it on Google Play

Download on iPhone

Install the iOS version on supported iPhones via the App Store.

Get it on the App Store

Install size and system requirements

Expect a ~15GB download on PC (~11GB on mobile). After extraction, plan for at least 40GB free on PC and 20GB on Android/iOS.

How combat works: swap melee and ranged

Every character can equip and switch between melee and ranged weapons mid‑fight. The roster covers whipblades, crossbows, and firearms like sniper rifles, grenade launchers, and hover guns. Encounters lean into mobility with aerial attacks, takedowns, and large enemy waves. Expect missions that mix tracking, recon, and rescue alongside straight hack‑and‑slash combat.

Story structure: two leads, one world

The campaign follows two protagonists on Atlasia with intersecting perspectives. At launch, four story chapters are available, split across their routes. The dual narrative is designed to reveal different sides of the same conflict as you progress.

Characters and weapons: no gacha, all grindable

All characters and weapons can be obtained through play. The core loop is:

• Farm shards and materials in dedicated content to unlock characters and forge weapons.
• Use a core currency, Secret Letters, which can be purchased with clues you gather, then traded for the character, weapon, or Demon Wedge you want.
• Older featured units rotate into regular boss content over time, so nothing leaves the pool permanently.

Weapons are cross‑compatible, so you can build loadouts that fit your playstyle rather than being locked to one character template.

Modes and minigames: where to farm and experiment

• Immersive Theatre: A focused farm for featured character shards and weapon materials.
• Nocturnal Echoes (boss): The long‑tail destination for prior featured units after new ones arrive.
• Mystic Maze (roguelike): A self‑contained mode with run‑based rewards; you can earn up to 60 Lisbell shards here alongside Secret Letters.

These modes sit alongside the main chapters and are the backbone of progression in the first weeks.

Launch content and cadence

• 19 playable characters and 45 weapons at launch.
• Update rhythm targets one new character and one new weapon roughly every 28 days.
• Launch lineup highlights include Psyche (with Chrysalis’ Daydream) and Fina (with the Dreamweaver’s Feather rifle).

Monetization and customization

There are no pay‑to‑win character or weapon pulls. Monetization centers on cosmetics and convenience. Expect:

• Cosmetic banners such as Starlight Rondo (permanent) and Summer Dreams Aflutter (limited‑time).
• Skins with full color sliders and visual ability effect changes.
• Chance‑based purchases exist for cosmetics; in‑game systems also include direct unlocks through play.

There’s a robust dye system that lets you recolor weapons and outfits, plus accessory slots for further customization.

Free launch rewards you can claim

At global launch, you can expect a sizable starter package and event chain rewards:

• 15M pre‑registration mail: Berenica, 25 Pristine Hourglasses, and early materials.
• Sanctuary unlocks: 30 Rebecca shards (instant recruit).
• Finish Prologue, Noctoyager 1‑2, Twilight 1: 30 shards each for Margie, Outsider, and Daphne.
• Tummy Full, Hands Full event: 30 shards for Truffle and Filbert.
• Mystic Maze roguelike: up to 60 Lisbell shards plus Secret Letters for her.
• Seven‑day login chains:
  • Ode to the Bloom: 10 Prismatic Hourglasses.
  • Message of the Nightingale (unlocks with Fina): 10 Prismatic Hourglasses.

Launch codes and how to redeem

These launch codes are valid until 2025/11/04 23:59 (UTC+8):

• DNARELEASE
• DNAFREEPLAY
• DNA1028

Redeem path in‑game:

1. Open Profile (top‑left of the main screen).
2. Go to Settings → General Settings.
3. Enter the code in the gift code redemption box.

Day‑one checklist

• Pre‑download on your platform of choice to avoid day‑one waits.
• Clear the Prologue and early chapter nodes (Noctoyager 1‑2, Twilight 1) to trigger shard rewards.
• Run Immersive Theatre for your target shards and mats; slot Mystic Maze runs for Lisbell progress.
• Claim pre‑registration mail and start the seven‑day login chains.
• Redeem launch codes before they expire.

If you want the smoothest path through the first week, focus on a small core squad, craft a flexible melee/ranged loadout, and use the dedicated modes to finish shard thresholds. You can always come back for cosmetics later—characters and weapons are permanent unlocks, and the calendar already points to regular monthly additions.