ABYSS - Deep Sea Expedition Log

How to Play

About the Game

ABYSS is an idle game about deep-sea exploration. Send your team into the depths, wait for them to return, and raise the creatures they catch in your tank.

🚢Send expedition

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⏳Wait (1-11h)

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📋Read report

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🐠Manage tank

Your Tank (Home Screen)

The tank is your home screen. All the creatures you've caught live here. Tap a creature to see its details.

Use the menu at the bottom to access expeditions, the creature dex, equipment upgrades, rankings, and settings.

How Expeditions Work

1. Preparation

Choose your companions (up to 2 creatures) and a target depth. Deeper waters hold rarer creatures, but the danger also increases.

Watch your equipment level

Going beyond your equipment's safe depth increases the risk of accidents. Upgrade your gear or choose a shallower depth.

2. Wait

Once launched, just wait. Expeditions continue even if you close the app. Shallow runs take about an hour; the deepest dives can take up to 11 hours.

3. Expedition Report

When the team returns, review the report. You'll see what creatures were caught, what junk was found, and how your companions fared.

Junk is your main income

Selling junk earns you gold. In the early game, this is your primary source of income. Use it for feeding creatures and upgrading equipment.

Taking Care of Creatures

Creatures in your tank get hungry over time. Feed them before they starve (30G per feeding).

Feed — Restores 30% hunger (30G)
Heal — Restores 50% HP (100G)
Level up — Creatures gain EXP from expeditions

Death is permanent

When a creature's HP reaches 0, it's gone forever. This is the way of the Abyss. Take good care of them.

Creature Dex

Every creature you catch is recorded in the dex. Your ultimate goal: discover all 67 deep-sea species. Reach "The Promised Depth" at 15,000m.

Fusion

If you have two creatures of the same species, you can fuse them to rank up. Each rank increases stats by 10% (max rank 3 = +++). The material creature is lost in the process, so choose carefully.

Visits & Feeding

Visit other players' tanks from the ranking screen. Your visit leaves a "footprint," and you can feed their creatures once per day. Check who visited your tank from the settings screen.

Items

Items can drop during expeditions. You also receive them from daily login bonuses and milestone rewards.

Ration — Restores 50% hunger
Medkit — Restores 30% HP
EXP Crystal — EXP +20
Large EXP Crystal — EXP +50 (drops at deeper depths)
Hourglass — Reduces expedition time by 60 minutes
Abyssal Gem — EXP +500 (rare drop at 13,000m+)

Tips for Success

Start with shallow depths (200m) to collect gold and junk
Upgrade equipment when you can — higher safe depth means deeper, more rewarding dives
Companions gain EXP from expeditions and grow stronger with each level up
If you have two of the same species, consider fusing them for a rank boost
Use the daily "Beacon of Return" to instantly complete one expedition per day
Log in daily for login bonus rewards (7-day cycle)
Hit milestones (depth, dex count, expedition count) to earn gold and items
Compete with other players on the depth ranking leaderboard

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