Dive into Roblox Abyss’ Forgotten Dome! Explore three underwater zones, unlock hidden shops and tiered chests, upgrade your oxygen Tubes, and master survival. Discover the Spirit Key, navigate shipwrecks, and catch rare fish while progressing through this thrilling underwater adventure.
Mastering The Forgotten Dome Map
The The Forgotten Dome update introduces a massive underwater expansion divided into three distinct zones. Navigation is vertical, meaning you must upgrade your oxygen capacity to survive the descent into darker waters.
The map progression is structured by depth:
- The Forgotten Deep (0m – 150m): The starting zone features a large yellow submarine and the Diver NPC.
- Ancient Sands (160m – 300m): A drop-off leads to this area, characterized by a massive shipwreck and stone towers.
- Spirit Roots (300m+): The deepest zone, filled with glowing flora and a large central tree. Accessing this area requires a Spirit Key.
To travel between these zones efficiently, players can use teleporters explained by Dr. Fin in the Hub, though a trip to Spirit Roots costs $550.
Spirit Key: A quest item rewarded for completing the main questline, required to unlock the large gate leading to the Spirit Roots zone.
The New Chest System Explained
Progression in this update relies heavily on a tiered chest mechanic. You cannot simply skip to the best loot; you must unlock it through gameplay.
- Tier 1 (Wooden): The basic chest type.
- Tier 2 (Iron/Silver): Unlocked after opening a specific quantity of Tier 1 chests.
- Tier 3 (Gold/Royal): The highest tier, requiring completion of Tier 2 prerequisites.
Strategic players should save their chests until they reach Level 20 or 25. Opening them earlier can be wasteful, as the content becomes vital when difficulty spikes in deeper zones.
Hidden Shops and NPC Locations
Finding vendors is harder in this update as many are tucked away in caves or structures.
Crazy Jeff’s Shop (Ancient Sands)
Located at approximately 220m depth. To find him, go to the NPC Marcus, face the drop-off, turn left, and follow the cliff wall until you see a cave entrance.
Inventory:
- Wasted Gun: Costs 10k+.
- Rukiry Tube: A mid-game oxygen tank (12.5k).
- Minimap: Requires Level 35.
Lightkeeper’s Shop (Spirit Roots)
Located in a hidden cave near glowing blue crystals on the right side of the zone (approx. 470m depth).
Inventory:
- Lost Spirit Gun
- Zeplin Tube
- Radar: Requires Level 35.
Other Key NPCs
- Grumpy Hank: Found in a stone tower in Ancient Sands.
- King Cat: Located in a hidden room with candles in Spirit Roots. This NPC offers the hardest quest in the game.
- Khai (Bestiary): Located in the Hub, rewards Star Shards for catching new species.
Gear Strategy: Tubes vs. Guns
Surviving the depths requires careful resource management. A common mistake is prioritizing weaponry over survival gear.
Priority Strategy: Upgrade your Tubes (Oxygen) before your Guns.
As you descend, your oxygen bar depletes rapidly. If you run out of air, you drown and lose progress. David in the Hub sells initial upgrades, while Crazy Jeff and the Lightkeeper sell advanced tanks like the Rukiry and Zeplin Tubes.
Weapon & Tool Comparison
Below is a breakdown of the key items available in the new zones.
| Shop | Item | Requirement | Function |
| Crazy Jeff | Minimap | Level 35 | Reveals map layout and tracks players. |
| Crazy Jeff | Wasted Gun | $10,000+ | Mid-tier weapon upgrade. |
| Lightkeeper | Radar | Level 35 | Shows fish locations as dots (Yellow = Rare/Legendary). |
| Lightkeeper | Lost Spirit Gun | N/A | High-tier weapon for deep zones. |
Fishing Mechanics and Tips
The update retains the "Click & Hold" bar minigame for catching fish. However, there is a crucial distinction between catching and killing:
- Catching: Successfully completing the minigame secures the fish and rewards money.
- Killing: Depleting the fish's HP to 0 leaves it floating. You can collect the body for resources, but you receive no money.
Geodes: Collectible nodes found in Mossy, Cacti, or Rooted zones containing resources required for quests.
Always ensure you are hooking the fish rather than destroying it if your goal is currency. Additionally, keep an eye out for Tier 2 Chests hidden in the environment, such as behind the yellow submarine in the Forgotten Deep or inside the hull of the shipwreck in Ancient Sands.
Frequently Asked Questions
Where is Crazy Jeff located in Fishing Simulator?
Crazy Jeff is found in the Ancient Sands zone at roughly 220m depth. From the NPC Marcus, turn left and follow the cliff wall until you spot his cave.
How do I unlock the Spirit Roots zone?
You must complete the main questline to obtain a Spirit Key. Use this key to open the large gate located at the bottom of the Ancient Sands area (approx. 300m depth).
What is the difference between the Minimap and Radar?
The Minimap reveals the map layout and player locations, while the Radar specifically highlights fish locations on your screen with colored dots indicating rarity. Both require Level 35.
Why am I not getting money when I collect fish?
If you reduce a fish's HP to zero, you "kill" it rather than catch it. Killed fish provide resources but no monetary reward; you must win the click-and-hold minigame to get paid.
Where can I find the hidden Tier 2 chests?
One is located behind the yellow submarine in The Forgotten Deep (Zone 1), and another is inside the broken hull of the large shipwreck in Ancient Sands (Zone 2).
