To get Fire Brick in Grounded 2, craft the required dust in the Oven; the underwater crystal route is for unlocking/progression, not for directly obtaining Fire Brick.
Into the Abyss expands Brookhollow Park with a major underwater route, and Fire Brick sits inside that new progression path. The important catch is that Fire Brick does not come directly from mining the crystal; it comes from Oven-crafted dust after the recipe/progression steps are handled.
Exact route for Fire Brick
| Stage | What |
|---|---|
| Reach the crystal area | Enter the under-tree route and head into the underwater crystal area. |
| Mine the crystal | Break the underwater crystal with a Tier 3 hammer for the progression material. |
| Make the shard | Use the needed station to craft the shard material from the crystal. |
| Scan the shard | Take the shard to any outpost and scan it. |
| Craft Fire Brick | Use the Oven after the unlock and make the dust that produces Fire Brick. |
Key The Fire Brick route is short once you know the chain: follow the under-tree crystal progression, handle the required scan/unlock step, then use the Oven to craft the dust that gives you Fire Brick. The table below keeps the route in the right order before the detailed run.
Scan the shard before returning to base; collecting the crystal alone will not directly give you Fire Brick.
Gear to bring before the pond route
| Requirement | Purpose |
|---|---|
| Tier 3 hammer | Needed to break the underwater crystal for the unlock/progression material. |
| Torch | Helps with the under-tree entry route. |
| Creature/buggy companion | The route calls for one; check the in-game companion UI before leaving. |
| Diving preparation | The crystal route is underwater, and Into the Abyss is built around pond traversal. |
This is an underwater-focused update route, so prepare for swimming, pond movement, and a short underground approach before you start farming. The run calls for a hammer strong enough to break the crystal, a light source, and a companion for the route.
How to get Fire Brick in Grounded 2
Follow this route to turn the under-tree crystal into the shard scan that unlocks the Oven crafting path for Fire Brick.
STEP 1/8
Find the tree route
Start at the specific tree above the crystal area and look for the entrance beside it.
STEP 2/8
Bring the route gear
Take a torch, the needed creature/buggy companion, and a Tier 3 hammer before going below.
STEP 3/8
Mine the underwater crystal
Swim into the crystal area and break the underwater crystal with the Tier 3 hammer for the progression material.
STEP 4/8
Build the shard station
Set up the station used for processing the crystal in that area.
STEP 5/8
Craft the shard material
Use the station to turn the crystal into the shard needed for the recipe scan.
STEP 6/8
Go to an outpost
Take the shard to any outpost; the nearby outpost along this route works.
STEP 7/8
Scan the shard
Scan the shard at the outpost to unlock the Fire Brick crafting path.
STEP 8/8
Craft Fire Brick in the Oven
Open the Oven and craft the dust that produces Fire Brick once the recipe is available.
Video help
Recipe scan that adds Fire Brick
Key The recipe gate is the shard, not Fire Brick itself. After mining the underwater crystal, use the station in that area to craft the shard material, then bring that shard to an outpost.
Any outpost works for the scan, so use whichever one is closest to your route back. Once the shard is scanned, the Fire Brick crafting path is added.
Oven crafting after the scan
After the recipe is added, craft the dust for Fire Brick from the Oven.
Uses for Fire Brick in Into the Abyss
Fire Brick is one of the new resources added with Into the Abyss. It belongs to the update’s underwater building progression, including marine structure crafting tied to the new pond and Abyss content.
That makes it less of a random material pickup and more of a progression resource: get the crystal route running, add the recipe through scanning, then keep the Oven supplied for the dust needed when you start building underwater.
Mistakes that block Fire Brick progress
The main mistake is treating Fire Brick like something you mine directly from the underwater crystal. The thing you are actually hunting first is the underwater crystal progression material, while Fire Brick comes from Oven-crafted dust.
Skipping the outpost scan is the other common blocker. Older building routes from before Into the Abyss also will not cover this material properly, because Fire Brick is part of the update’s underwater progression.
Related Grounded 2 guides
Frequently Asked Questions
Can you pick up Fire Brick directly?
No. Go after the underwater crystal progression first, complete the shard scan, and then make Fire Brick through Oven-crafted dust.
Is Fire Brick tied to Into the Abyss underwater content?
Yes. Its progression route starts with an underwater crystal, and its use fits the update’s new underwater building and marine-structure progression.
Why does scanning the shard matter?
The scan is what opens the Fire Brick crafting path, so the Oven route only opens after that outpost scan is done.
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