How to Make Explosives in Rust: Full Recipe, Raw Costs, and More

Most guides on how to make explosives in Rust just paste the recipe and move on. 50 Gunpowder, 3 Low Grade Fuel, 10 Sulfur, 10 Metal Fragments, done, good luck. What they don’t tell you is how much raw sulfur that actually costs when you trace the entire chain back to ore, or that you can skip the Tier 3 Workbench entirely if you use a Mixing Table.

The recipe itself is the easy part. The hard part is the math behind it, and the decisions that separate a wipe where you’re raiding on day three from one where you’re still smelting on day five.

Explosives in Rust are a late-game crafting component used to build C4 (Timed Explosive Charges) and Rocket Ammo, requiring 50 Gunpowder, 3 Low Grade Fuel, 10 Sulfur, and 10 Metal Fragments per unit at a Tier 3 Workbench or Mixing Table. One explosive takes 5 seconds to craft and stacks up to 10 in a single inventory slot.

The Actual Explosives Recipe (and Why Most Guides Get It Wrong)

A surprising number of top-ranking articles list the wrong ingredients. We’ve seen guides that say you need “50 Sulfur and 10 Charcoal” as the recipe. That’s not how it works. The crafting menu requires 50 Gunpowder, not 50 Sulfur, and Gunpowder is itself a crafted item.

Here is the real recipe for one unit of Explosives:

• 50 Gunpowder (which costs 30 Charcoal + 20 Sulfur to make)
• 3 Low Grade Fuel
• 10 Sulfur
• 10 Metal Fragments

So the total raw Sulfur per Explosive is 30, not 10. You need 20 Sulfur inside the Gunpowder plus 10 Sulfur added directly. That distinction matters a lot when you start calculating raid costs, because every C4 needs 20 Explosives and every Rocket needs 10.

Raw Material Breakdown per Explosive

When you trace everything back to ore and base materials, one single Explosive actually costs:

• 30 Sulfur (total, combining Gunpowder cost and direct cost)
• 30 Charcoal (from the Gunpowder)
• 10 Metal Fragments
• 3 Low Grade Fuel (which is 2.25 Animal Fat + 0.75 Cloth, roughly)

Those numbers get big fast. We break them down for C4 and Rockets below.

How to Unlock the Explosives Blueprint

You can’t just walk up to a Workbench and start making these. You need the Explosives blueprint first, and there are two ways to get it.

Research Table Method

If you find or loot an Explosive (from a crate, a raid, or a dead player), you can take it to a Research Table and learn the blueprint for 75 Scrap. This is the cheaper path by a wide margin, but it depends on actually getting your hands on one first.

Tech Tree Method

You can also unlock Explosives through the Tier 3 Workbench tech tree, which costs around 500 Scrap to reach the final node. For solos, that’s a painful grind. For groups running monuments consistently, it’s routine.

The Mixing Table Bypass

Here’s the part that almost nobody mentions in explosives guides. Once you know the Explosives blueprint, you can craft them at a Mixing Table instead of a Tier 3 Workbench. According to community testing and the Rust wiki on Fandom, the Mixing Table uses the same recipe and same ingredient costs. The difference is that you don’t need a Tier 3 Workbench sitting in your base.

A Mixing Table costs 200 Metal Fragments and 100 Stone to craft at a Level 1 Workbench, or you can buy one from Bandit Camp for 175 Scrap. You can also run multiple Mixing Tables at once, which means a small group can have three or four of them cranking out Explosives simultaneously while the Workbench handles something else.

This is a genuine shortcut for solos and duos who might not have the scrap for a Tier 3 but already found the blueprint from a lucky crate pull.

Full Sulfur Cost for C4 and Rockets

Knowing the per-unit cost is helpful, but what you really need is the total raw cost for the things you’re actually building.

Timed Explosive Charge (C4)

One C4 requires 20 Explosives, plus 5 Cloth and 2 Tech Trash. Based on the raw material breakdown above, the Explosives portion alone costs:

But that’s only the Explosives component. The C4 itself also needs Gunpowder in the final craft. According to the Steam Community raid cost calculator (updated February 2026), one C4 runs roughly 2,200 Sulfur total when you account for all the Gunpowder layers. That number is the community standard, and tools like rusttips.com and rustraidcost.com confirm it.

Rocket Ammo

One Rocket requires 10 Explosives, 150 Gunpowder, 2 Pipes, and some Metal Fragments. The total Sulfur cost per Rocket lands around 1,400 according to the same community sources. Rockets are cheaper individually than C4, but you often need four of them to break a single stone wall, pushing the per-wall Sulfur cost to 5,600.

Quick Raid Cost Reference

This table shows the cheapest Sulfur cost to destroy common base components, based on widely used community raid calculators:

The numbers shift slightly depending on whether you mix in Explosive Ammo (which costs about 25 Sulfur per round). But the pattern holds: C4 is Sulfur-efficient for single targets, Rockets are better when you can splash multiple walls.

Farming the Materials Efficiently

Knowing the recipe is one thing. Actually gathering 4,400 Sulfur for a single stone wall is another. Here’s how to speed that up without losing your mind.

Sulfur Nodes

Sulfur Nodes are the yellow-tinted ore rocks, and they spawn most densely in snow biomes and mountainous terrain. One node gives roughly 300 Sulfur Ore with a metal pickaxe, and each Ore smelts into 1 Sulfur. Using a Jackhammer is significantly faster if you can get one from Outpost for 150 Scrap.

Pure Ore Tea (the highest tier) boosts your mining yield, and stacking that with a Jackhammer on a good snow biome route can pull 3,000 to 4,000 Sulfur per run. That’s enough for one C4 in a single farming trip, which is something most players don’t realize is possible.

Charcoal

You get Charcoal automatically whenever you smelt ore, because furnaces burn Wood and produce Charcoal as a byproduct. The trick most veterans know is to run Large Furnaces with a wood-heavy load early in the wipe. A Large Furnace smelts faster and produces more Charcoal per cycle than small ones.

Never throw away Charcoal. Seriously. Players who toss it early in wipe always regret it later when they need thousands of Gunpowder and the Charcoal isn’t there.

Low Grade Fuel

Low Grade Fuel comes from 3 Animal Fat plus 1 Cloth. Bears and horses drop Animal Fat, and you can get Cloth from hemp plants or by recycling certain items. The amounts you need for Explosives are actually pretty small (just 3 per unit), so this rarely becomes the bottleneck.

Metal Fragments

Smelt Metal Ore in any furnace. You need 10 per Explosive, which adds up to 200 per C4. Not the hardest farm, but don’t neglect it. Running out of Metal Fragments mid-craft because you focused entirely on Sulfur is a rookie mistake that wastes time.

Monument Loot: When Crafting Isn’t the Fastest Option

Sometimes you don’t need to craft explosives at all. High-tier monuments drop them directly, and if you’re running these monuments anyway for Tech Trash and other loot, the Explosives are essentially free.

Where Explosives Drop

• Launch Site: Elite crates here have a solid chance of containing Explosives. The Bradley APC also drops them when destroyed.
• Military Tunnels: The Elite crates at the end of the tunnel are some of the best loot sources in the game for Explosives and C4.
• Oil Rig (Small and Large): Heavy Scientists guard these, but the crate rewards often include Explosives and sometimes fully crafted C4.
• Cargo Ship: High risk because of PvP exposure, but the locked crate can contain Explosives.
• Locked Crates (Chinook/Supply Drop): Randomly spawned crates called in by the Chinook helicopter have a chance to drop Explosives directly.

For solo players who struggle to farm the Sulfur needed for large-scale crafting, monument runs can be the more practical path. You might come home with 5 to 10 Explosives from a good Military Tunnels run, which saves you about 300 Sulfur worth of crafting per unit.

Solo vs. Group: How Team Size Changes Everything

The Explosives economy works completely differently depending on whether you’re playing alone or with a team.

Solo Play

As a solo, you are the farmer, the crafter, and the raider all at once. Your Sulfur income is limited to what you personally mine, and every death on a farming run sets you back hard. The Mixing Table bypass matters more for solos than anyone else, because 1,250 Scrap for a Tier 3 Workbench is a massive investment when you’re also spending Scrap on guns, armor, and base upkeep.

Solos also benefit more from Satchel Charges early in the wipe. Satchels don’t require Explosives at all (they use Beancan Grenades instead), and while they’re unreliable because of the dud mechanic, they can crack sheet metal doors for a fraction of the Sulfur cost.

Groups of 3+

With a team, you can dedicate one or two players to Sulfur farming while others run monuments for Tech Trash and blueprints. The Tier 3 Workbench becomes trivial to build, and you can realistically have C4 on day two of wipe if your routes are efficient.

Groups also benefit from the Rocket splash mechanic. When you fire a Rocket at the intersection of four walls, it damages all four. That turns a 5,600 Sulfur cost (4 Rockets for one wall) into roughly 1,400 per wall if all four take full damage, which completely changes the math on which explosive to use.

Explosive Ammo: The Silent Alternative

Explosive 5.56 Ammo doesn’t use the Explosives crafting component at all, which makes it a separate path worth understanding. Each round costs about 25 Sulfur, and you need 63 rounds to destroy a sheet metal door. That’s 1,575 Sulfur for a door, compared to 2,200 for a C4.

The real advantage is stealth. You can fire Explosive Ammo through a silenced weapon, making your raid dramatically quieter than C4 or Rockets. On high-pop servers where counter-raiders are a constant threat, that silence can be the difference between finishing your raid and getting wiped mid-door.

The downside is time. Shooting 63 rounds at a door takes a while, and your weapon loses durability fast. According to community testing shared on HubPages, a full-durability Semi-Automatic Rifle breaks after about 134 Explosive Ammo rounds. So you’ll need repair benches or spare guns if you’re doing a serious raid with explo ammo.