ABYSS - Deep Sea Expedition Log

Even where light cannot reach, life exists.

ABYSS is an idle game about deep-sea exploration.

Dive into the abyss with your submersible, catch deep-sea creatures, and return.
All you do is wait — you won't know what happened until the expedition is over.

The creatures you catch can be kept in your tank.
Feed them, raise them, and take them on the next dive.
— But the deep sea is dangerous. Sometimes, they don't come back.

Play Now

Play ABYSS in your browser (free)
Mobile recommended. No install required.

Chapter 1: The First Sea — Complete

After six major content updates, the first chapter of ABYSS is now complete.
From the sunlit shallows to the crushing depths of 15,000 meters — the journey is yours to take.

Features

  • 67 deep-sea creatures to discover and raise — from common fish to ancient abyssal beings
  • Explore depths up to 15,000m across 17 depth zones
  • 42 types of deep-sea artifacts and junk to collect and sell
  • The "unseen time" during expeditions is the core of the game
  • Creature death is permanent — your tank tells a story of survivors
  • Fusion system — merge creatures of the same species to rank them up
  • Visit other players' tanks and feed their creatures
  • 7 equipment tiers, level cap 50, and 23 milestone rewards
  • Daily login bonuses, 6 item types including the ultra-rare Abyssal Gem
  • Compete on the depth ranking
  • Play in your browser — no install required
  • Available in English and Japanese

How to Play

  1. Start an expedition — choose a depth and companions
  2. Wait (1-9 hours of real time)
  3. Check the expedition report
  4. Manage your tank — feed, heal, and fuse your creatures
  5. Dive deeper

Credits

Developed by Quatrex
Built with TypeScript, React, and Supabase

Updated 24 days ago
StatusReleased
PlatformsHTML5
Rating
Rated 1.0 out of 5 stars
(2 total ratings)
AuthorQuatrex
GenreSimulation
Tagsaquarium, browser, Cozy, creatures, deep-sea, Exploration, free, Idle, Incremental
Average sessionA few minutes
LanguagesEnglish, Japanese
InputsMouse, Touchscreen
AccessibilityColor-blind friendly, Subtitles
AI DisclosureAI Assisted, Code, Text

Development log