The Titanic Scalder is one of the harpoon guns added to Fisch in The Deep update, and you cannot buy it from any merchant. It only exists as a craft, which means the whole task comes down to collecting three materials and reaching the harpoon table hidden inside Ancient Archives.
Quick answer: Bring 1 Thermal Harpoon, 1 Heat-Proof Metal, and 25 Salvage Scrap to the harpoon crafting table in Ancient Archives, then craft the Titanic Scalder for free.
Titanic Scalder crafting materials
You need three separate materials before the recipe will complete. Two of them come from quests, and the third comes from ordinary fishing in the region.
| Material | How to get it |
|---|---|
| Thermal Harpoon | Complete the quest from Vesper of the Deep |
| Heat-Proof Metal | Finish all four Hunter Dan quests near the first tower |
| 25x Salvage Scrap | Drops from general fishing across The Deep |
Salvage Scrap is the easiest of the three, so it helps to stockpile it while you work through the quests. It appears frequently while fishing or when you leave a rod running in areas like the Gloomy Crevice and the Outer Deep.
How to get the Thermal Harpoon
The Thermal Harpoon comes from Vesper of the Deep, an NPC tied to the Thermal Vents area inside The Deep. The quest, Thermal Adaptations, asks you to catch 15 fish at Lower Deep.
How to get the Heat-Proof Metal
Heat-Proof Metal is the longest part of the process. It requires you to finish every quest offered by Hunter Dan, who stands near the first tower. There are four in total, and each one unlocks the next.
Reaching the harpoon table in Ancient Archives
The crafting spot sits inside Ancient Archives, reached through a hidden route on the Ancient Isles. A short parkour section stands between you and the table, so knowing the path saves time.
Titanic Scalder stats
The Titanic Scalder leans on high resilience and fast velocity rather than raw power. That balance makes it dependable against tougher roaming fish that fight hard once hooked.
| Stat | Value |
|---|---|
| Power | 9 |
| Range | 128 studs |
| Reload | 2s |
| Velocity | 32/ps |
| Resilience | 40% |
| Accuracy | 20% |
| Max Kg | 100,000 kg |
If the recipe looks missing
The most common mistake is checking a merchant or a rod station. The Titanic Scalder is a craft-only weapon, so shops will not sell it, and the rod crafting stations nearby will not list it either. It appears only at the separate harpoon table in the main cavern.
The other frequent issue is the entrance itself. If you have reached Ancient Isles but never dropped through the hidden gap behind the waterfall and down the rope, you are still outside the room that holds the correct station. Once all three materials are in your bag and you are standing at the harpoon table, the recipe fills in and the craft button becomes usable.
Note: as new gear from The Deep, the Titanic Scalder’s numbers can shift with future balance updates, so treat the current stat line as a snapshot rather than a permanent value.
