Grenade Launcher
Weapon · WeaponRocketLauncher4★Grenade Launcher is an early weapon: 33rd of 39 by attack, so treat it as a stepping stone, at 4,500 against the 16,800 of Beam Launcher.
Nothing is crafted from it — it is an end product, so anything you make is meant to be used rather than banked as a component.
Details
At 30 weight each it eats carry capacity fast, so bring a mount or park a chest nearby. At 624,120 gold it is worth real money to a merchant.
Grenade Launcher Crafting Recipe
Pal Metal Ingot×150
Plasteel×120
Carbon Fiber×30
Ancient Civilization PartsCrafting it takes 305 materials across 4 types.
Where to Find Grenade Launcher
Grenade Launcher is not something you find lying around — you craft it, and the recipe is below.
Using Grenade Launcher Well
Owning the schematic is not enough on its own — it has to be riding in your inventory when you walk up to the bench, because a copy left in a base chest never puts the recipe on the menu. The bench itself has to be a Weapon Assembly Line II or better: that one comes in at level 47 and costs 100 Refined Ingot, 10 Circuit Board, 5 Corrosive Solvent and 5 Bio Battery, and it wants 400 power and a Handiwork Pal. The Advanced Weapon Assembly Line at level 63 and the Ancient Workbench at level 67 will also take the job, though the Ancient Workbench is Pal-operated only — you cannot stand at it and craft yourself.
Ancient Civilization Parts are the wall, not the ingots. The tech-tree Grenade Launcher needs none at all, and every rarity above it does: 2, 3, 4, then 5 for the Legendary alongside 150 Pal Metal Ingot, 120 Plasteel and 30 Carbon Fiber. If you are choosing which schematic to spend a bench run on, the Ancient parts are what you are really spending — the metal is farmable, the parts come off bosses.
The craft is the slowest part of owning one. Work on the Legendary build is 12,800,000 against 400,000 for the plain tech-tree Grenade Launcher — the figure doubles at every rarity step, so this single weapon is thirty-two times the labour of the base version. Nothing about your materials changes that; only the tier of the assembly line and the Handiwork ranks of the Pals you park on it do. Stand up the Advanced Weapon Assembly Line before you start rather than halfway through.
What the Legendary actually buys you is uptime, not burst. Attack climbs from 3,000 to 4,500 across the ladder — half again — while durability goes 600, 900, 1,200, 1,800, 2,400, a full four times the base. The magazine never moves off 5 at any rarity, so the firing rhythm is identical no matter which one you carry; the Legendary just survives four times as much shooting before it needs replacing.
Chasing a particular schematic tier is wasted effort, because the Dark Island supply drops price them as an exact ladder: Schematic 1 at 23.74%, Schematic 2 at 4.75%, Schematic 3 at 0.95% and Schematic 4 at 0.19% — each rung is five times rarer than the one under it, and five of any tier fuse into one of the next. That makes 125 copies of Schematic 1 and one lucky Schematic 4 the same number of crates on average, so open everything, keep everything, and fuse upward. The one route that skips the ladder is the large oil rig: its crates carry the Schematic 4 without stocking the three tiers beneath it.
Ammunition Grenade Launcher Uses
Grenade Launcher fires Grenade Ammo, and nothing else — running dry mid-fight is the usual way this weapon lets you down, so keep the recipe unlocked before you rely on it.
| Ammo | Yield | Craft cost |
|---|---|---|
 Grenade Ammo | ×10 | Pal Metal Ingot ×2, Fiber ×20, Gunpowder ×3 |
Schematics That Unlock Grenade Launcher
Grenade Launcher is not learned from the Technology tree — you need a schematic for it. One schematic grants the recipe, and they are world loot — chests, boss Pals and the late-game pools — rather than anything you research. Higher-rarity copies of the same schematic raise the quality of what you end up crafting.
| Schematic | Rarity | Where it comes from |
|---|---|---|
 Grenade Launcher Schematic 4 | 4★ | Crates on the oil rigs, Crates on the large oil rig, Enemy camp boss stashes in the Sakurajima +1 more (grade 5) · Supply drops in the Dark Island (0.19%) |
Alternatives and Upgrades
Step up from here and you get Multi Guided Missile Launcher at 5,900 attack; step down and it is Grenade Launcher at 4,050. That gap is the honest measure of whether an upgrade is worth the materials right now.
Other weapons at a similar tier, for when you want to weigh this against the rest of its class:
