Scientist's Quest
Kraken's Quest
Mr. Black's Quest
Virelia's Quest
Marcus's Quest
Diver's Quest
Suspicious Fisher's Quest
Grumpy Hank's Quest
Isolde's Quest
Isaac's Quest
Lumi's Quest
Morveth's Quest
Victor's Quest
Golem's Quest
Lost Captain's Quest
King Cat's Quest
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Abyss (Roblox)
Crab Quest Chain Guide
Redeem your Abyss Codes (February 2026) here!
★ Progression Guide, How to Reroll Race, Tier List
★ Lists: Fish, Guns, Tubes, Races, Artifacts
★ Interactive Map: Ducks, Treasure Chests, NPC
★ Best Guns, Best Tubes, Best Artifact, Best Race
This is a guide for all of Crab's quests in Abyss. Check out the walkthrough guides for Crab's quests, where to find Crab, as well as the rewards for all quests here!
List of Contents
Crab Quest 1 Walkthrough
Get 7 Ancient Keys by Completing Quests
| NPC | Description |
|---|---|
| Kraken | Complete Kraken's Quest #5 to get a Forgotten Key. |
| Mr. Black | Complete Mr. Black's Quest #8 to get a Forgotten Key. |
| Marcus | Complete Marcus' Quest #5 to get an Ancient Key. |
| Grumpy Hank | Complete Grumpy Hank's Quest #4 to get an Ancient Key. |
| Victor | Complete Victor's Quest #4 and #7 to get two Spirit Keys. |
| Golem | Complete the Golem's Quest #2 to get a Spirit Key. |
We advise completing the following NPC Quests first to get Ancient Keys as you will need them to open the Fish Ruins. Without the keys, you cannot enter the ruins, so finding them first will allow you to quickly knock out this quest easily!
Keys can only be used within the same biome, depending on the type and location from which you got them.
Find Seven Fish Ruins
| World View | |
|---|---|
| 1 |  Found directly east of the Scientist's position in the Forgotten Dome. Location: Forgotten Deep |
| 2 |  Located west of the Lost Captain. Location: Forgotten Deep |
| 3 |  Found on top of a rock formation near the entrance of Ancient Sands. Location: Ancient Sands |
| 4 |  Found hidden in a rock formation farther south of Ancient Sands. Location: Ancient Sands |
| 5 |  Found northeast of Spriit Roots safety area. Location: Spirit Roots |
| 6 |  Located inside the Spirit Roots cave area. This is positioned northeast of the Golem when viewed in the map. Location: Spirit Roots |
| 7 |  Located in the upper layer of the Spirit Roots cave area. This is positioned near Isaac when viewed in the map. Location: Spirit Roots |
You can then start searching for the seven ruins located in Forgotten Deep, Ancient Sands and Spirit Roots. Finish searching and opening all 7 ruins then return to the Crab at the starting area to conclude the questline.
Crab Quest Location
Found in The Forbidden Dome
 Overworld |
 Map Image |
You can only talk to the Crab in the Dome once you've obtained the Crab Scroll from a hidden cave far southeast of Ancient Sands.
Crab Quests Overview
| Quest Giver | Location |
|---|---|
 Crab
|
The Forbidden Dome |
| Repeatable? | |
| No | |
| Objectives | |
|
Crab's Quest 1: • Open 7 Fish Ruins |
|
Crab Quest Rewards
| Quests | Rewards |
|---|---|
| Crab's Quest 1 | • 60 Star Shards • Basic Oxygen Pod x1 • Strength Potion x1 • Drop Luck Potion x1 • Crab Claw x1 |
This is the list of rewards you can obtain after completing each quest from Crab.
Abyss Related Guides
All Quest Guides
Comment
Author
Crab Quest Chain Guide
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