You've finally made it to the Second Sea. The grind was real. Now, you’re looking at your inventory or a crafting menu and seeing a weird green icon. It’s Radioactive Material. Honestly, it’s one of those items in Blox Fruits that sounds way cooler and more dangerous than it actually is, but it’s absolutely essential if you want to stop being a "noob" and start actually competing in raids or high-level PvP.
Most people stumble upon it by accident. You’re just fighting NPCs, minding your own business, and suddenly it pops up. But if you're specifically hunting for it, you need to know exactly where to go because it doesn't drop just anywhere. It’s a rare material. Don't expect it to fall like candy.
Where to Find Radioactive Material Blox Fruits Drops
Let’s get the location straight. You need to be in the Second Sea. Specifically, you’re heading to the Hot and Cold island. This place is iconic—half fire, half ice. It’s also the place where the Law Raid (Order Raid) happens.
To get your hands on radioactive material, you need to hunt the Factory Staff. These NPCs are level 1100. They hang out near the Factory on the "Hot" side of the island. Now, here is the kicker: the drop rate isn't 100%. In fact, it's pretty low. Some players get it on their first ten kills; others are there for an hour questioning their life choices.
You’ll know you’re in the right spot because the NPCs look like workers in lab suits. It makes sense, right? They’re working in a factory; of course they have the radioactive stuff. You don't need a quest active to get the drop. Just pull them together, use your best AoE (Area of Effect) fruit—like Magma or Buddha—and start mashing buttons.
Does the Factory Raid Give Radioactive Material?
Sorta. People get confused here. There is the Factory Breach event that happens every 1 hour and 30 minutes. If you deal the most damage to the core, you get a fruit. But the Radioactive Material itself is a drop from the NPCs outside or the ones that spawn during the chaos. If you're purely farming for the material, don't wait for the timer. Just farm the level 1100 Factory Staff. It's faster.
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Why Do You Even Need This Stuff?
It’s all about the upgrades. In Blox Fruits, your weapons and fighting styles have "grades." If you want to push your damage output to the limit, you have to talk to the Blacksmith.
The Blacksmith is found in all three seas, but you’ll likely be using the one in the Second Sea (at the Kingdom of Rose) or the Third Sea (at Turtle Island). Radioactive Material is a core ingredient for several specific upgrades.
- The Serpent Bow: This is a decent long-range weapon. To upgrade it to its "Unique" or "Legendary" status, you’re going to need 10 Radioactive Materials.
- The Pipe: Want to channel your inner Sabo? The Pipe requires 2 Radioactive Materials for an upgrade. It’s cheap, but it’s a stepping stone.
- Acidum Rifle: This is the big one. This gun is actually meta for some PvP builds because of its stun and damage over time. Upgrading this requires 8 Radioactive Materials.
If you aren't into guns, you might think you can skip the grind. You can't. Even if you’re a fruit main or a sword main, having these materials tucked away for when the meta shifts is just smart play.
The Frustrating Reality of the Drop Rate
Let’s be real. The RNG (Random Number Generation) in this game can be brutal. You might see a "Rare Material" notification and get excited, only to realize it was something else.
To speed this up, I highly recommend using the 2x Boss Drops gamepass if you have the Robux. While the Factory Staff aren't "bosses," the gamepass often influences rare material drop rates across the board. If you're F2P (Free to Play), your best bet is efficiency.
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Grab a Buddha Fruit. Transform. Stand in the middle of the spawn point. Use a sword with a wide swing. This way, you’re killing 4-5 NPCs every few seconds. If you’re doing it one by one with a fruit like Light or Ice, you’re going to be there all day. It’s about the kills-per-minute.
The Mystery of the Factory
There's always a rumor floating around the Second Sea docks. "Yo, did you know you can get Radioactive Material from chests?" No. You can't. Don't waste your time server hopping just to open gold chests in the Factory. It is strictly a mob drop.
Another thing—level matters. If you are level 700 and trying to farm level 1100 NPCs, you’re going to have a bad time. They will shredded you. Make sure you're at least level 1050 before you start camping the Factory Staff, or you'll spend more time running back from the spawn point than actually looting.
Advanced Crafting and the Third Sea
While most of your radioactive material blox fruits usage happens in the Second Sea, don't think it becomes useless once you hit level 1500 and cross over to the Third Sea.
Newer updates have introduced more complex crafting requirements. While the primary use remains the Acidum Rifle and Serpent Bow, the game developers (Gamer Robot Inc.) love to reuse old materials for new enchantments. If you ever want to apply specific "Blessings" or "Curses" to your gear later on, having a stack of rare materials from previous seas is a massive time-saver.
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Is it Worth the Grind?
Honestly? Yes, but only for the Acidum Rifle.
If you are a sword main, the Acidum Rifle is one of the best "combo starters" in the game. It shoots fast, it breaks instinct (sometimes), and it applies a lingering effect. To make that rifle actually hit hard, that upgrade is non-negotiable.
If you're just a casual player who likes exploring islands, don't stress it. You'll eventually get enough material just by participating in the Factory Breach events over time. But for the competitive players, the Factory side of the Hot and Cold island is your new home for the next few hours.
Quick Checklist for Farming:
- Location: Hot and Cold Island (Second Sea).
- Target: Factory Staff (Level 1100).
- Best Fruit: Buddha or Magma (V2).
- Required for: Acidum Rifle, Serpent Bow, Pipe.
- Tip: Server hop if the area is too crowded with other farmers.
Actionable Next Steps for Success
Stop wandering around the Kingdom of Rose asking where the "green stuff" is. Head straight to the Hot and Cold island. If you don't have a Buddha fruit, try to find a friend who does and "leech" the drops by dealing at least 10-20% damage to the NPCs they are pulling.
Once you secure at least 10 Radioactive Materials, trek back to the Blacksmith. Don't forget that you also need other items like Scrap Metal or Leather to finish most upgrades. Most people forget the secondary ingredients and have to sail back and forth like a lost sea captain. Check your inventory, verify you have the Acidum Rifle or Serpent Bow, and commit to the upgrade. Your damage stats will thank you when you're in the middle of a frantic Bounty Hunt later tonight.
Stay focused on the level 1100 mobs. Ignore the distractions. Get the loot. Move on to the Third Sea. It's as simple as that.