Alloy Steel
Alloy Steel feels worth the slot when a real craft, upgrade, or sale plan is already waiting for it after extraction.
Metal Rods is the material stack to keep when a weapon recipe already needs rods, not when the crew is only guessing about future crafting.
Metal Rods feels worth hauling out when the next confirmed weapon craft is already waiting on them. The stack matters because rifle, pistol, and similar weapon recipes can stall without it, but that still does not make every rod stack worth carrying home. If no current craft is about to spend it, fuel, healing, repairs, and matching ammunition usually protect the run better.
Found through specialized boxes.
Alloy Steel feels worth the slot when a real craft, upgrade, or sale plan is already waiting for it after extraction.
Coral Chunk feels useful early because you keep finding places to spend it instead of watching it rot in storage.
Coral Dust starts feeling good the moment you realize it is not random filler and actually feeds ammo people want to craft.
Fabric matters when the next recipe has already moved past scraps, so it wins the slot only if a higher-grade textile input is actually waiting.
Fabric Scraps only deserve cargo space when a live recipe still accepts scraps; otherwise they lose to fuel, heals, and ammo fast.
Gunpowder is a keep-or-drop material, and it wins the slot only when ammo or explosive crafting is already part of the plan.
High-Grade Gunpowder earns cargo space only when a real craft or trade plan already needs it more than the survival stacks competing for the same slot.
Leviathan Meat is the easier Leviathan material to justify, because Food Crates drop it and each stack still sells for 14 Crowns per piece at the pawn shop.
Its best value is unlocking the exact weapon recipe that is already blocked by missing rods.
When no recipe is waiting on it, the stack becomes easy to overcarry. Fuel, healing, repairs, and matching ammunition usually do more to preserve the current run.
Keep it when the next confirmed weapon craft already needs Metal Rods and you expect to spend the stack soon.
Metal Rods comes from specialized boxes.