The Problem

Reach weapons solve a different problem than raw damage weapons. If you only compare damage per swing, the Welding Spear can look like another mid-game melee option. That misses the point. Its value comes from controlled distance, fire bonus damage, and battery-powered explosion utility.

This guide stays within source-backed facts from the official wiki and uses those facts to build a practical loadout plan. It does not claim hidden drop rates, secret routes, or unverified enemy weaknesses.

The Solution

Use the Welding Spear when you need a melee weapon that combines reach, sharp damage, fire bonus damage, and area impact from battery charge. The official wiki describes it as A superheated spear capable of dealing explosive fire damage to targets.

The safe way to use it is simple. Keep enough space to land the spear tip. Avoid wasting battery charge on missed attacks. Do not trigger the explosion beside furniture or storage you want to keep. It remains usable without battery charge, but the explosion effect is lost, so battery planning matters.

Verified Weapon Facts

These numbers are the safest anchor for the guide. The Welding Spear is not being recommended because of imagined hidden DPS. It is recommended because the listed stat package creates a clear job: poke safely, add fire damage, and use battery charge for explosive impact.

Crafting Checklist

The official wiki lists the Welding Spear as craftable at the Crafting Bench. Before building it, prepare the bench, the required materials, and a repair plan.

If the recipe does not appear at the bench, check whether the relevant research material or unlock condition has been discovered. Do not burn time farming extra materials before confirming that the recipe is visible in the crafting UI.

How to Use the Reach Advantage

The Welding Spear should be treated as a spacing tool first and a damage tool second. Start encounters from the edge of melee range. Let the target move into the spear instead of walking directly into the target. After each hit, reset your position before attacking again.

This approach matters because the weapon has durability and battery limits. Every missed swing still costs time, and battery-powered hits are the part that add explosive value. Controlled attacks preserve charge and reduce repair pressure.

The source-backed part of this advice is the weapon profile: sharp melee damage, fire bonus damage, durability, battery capacity, and an explosion at the hit location. The practical part is the safe way to apply those facts. A weapon that creates impact around the hit point rewards deliberate target selection. It is less useful when swung randomly at empty space or near objects the player wants to protect.

Battery and Explosion Notes

The official wiki states that the Welding Spear uses battery charge to cause a small explosion where it hits. That explosion damages enemies and furniture around the impact point. It also states the weapon can still be used without battery, but without the explosion effect.

That creates two practical rules. First, do not waste charged attacks on targets that are not in range. Second, do not fight beside storage, crafting benches, or furniture you care about unless you accept the risk of splash damage. The explosion is useful, but it is not free.

Battery capacity is listed as 150, so the weapon should be treated as a powered tool with a finite combat window. The exact charge cost per hit is not included in the available source data, so this guide does not invent a swing count. The safest habit is to check charge before leaving base and after any fight where the explosion effect mattered.

Maintenance Plan

The Welding Spear has 30 durability. The wiki lists Tech Scrap as its repair item, with a repair amount of 3. That makes repairs predictable. It also means the weapon should not be the only melee option in the inventory.

When This Weapon Is the Right Choice

Choose the Welding Spear when the fight rewards reach, controlled hits, or fire bonus damage. It is also a sensible pick when enemies are close enough that a hit-location explosion can add value. Do not choose it only because it is available. The weapon asks the player to manage three resources at once: position, durability, and battery charge.

It is less attractive for trivial targets where a cheaper weapon solves the problem. It is also less attractive beside fragile base objects. The source says the explosion damages furniture, so base defense use needs careful positioning. Stand so the hit point is away from important structures, or switch to a non-explosive weapon.

What This Guide Does Not Claim

Some details need player testing or a more specific source before they should appear in a public guide. This page does not claim an exact blast radius. It does not claim exact charge consumed per hit. It does not claim a hidden enemy weakness. It does not claim a universal best-in-slot ranking. Those claims would need separate source evidence.

Keeping that boundary is important for accuracy. The safe conclusion from the source is narrower: the Welding Spear is a craftable sharp melee weapon with fire bonus damage, battery capacity, repair requirements, and an explosion effect on hit. The strategy is built from those verified facts.

Common Mistakes

See Also

• abiotic factor blacksmith guide
• weapon crafting tier list
• all bosses and enemies guide
• beginner base defense setup