Builds / Harpoon Gun

Best Harpoon Gun Build in Abyssus

Tier B The Piercing Weapon Precision burst specialist

Deals massive single-shot damage but suffers a long reload; a slow, heavy hitter that demands precise timing and positioning.

Best for: Precise single-shot burst & burn setups

Recommended Harpoon Gun build

A slow burst weapon → scale raw damage and crit, not fire-rate status. Its burst applies max status stacks in one hit, making it superb for Burn-centric builds — just bring reload charms.

⚑ Best Aspect

Flares (Fire)

✦ Key Blessings

  • Stacking Flames — a single harpoon applies max burn stacks at once
  • Linked Flames to spread it

⚒ Ancient Forge mods

  • Reload Speed (top priority)
  • Raw damage / critical damage
  • Pierce count

◈ Recommended Charms

  • Reload-speed charms (essential to offset the reload)
  • Giant Slayer
  • Critical-multiplier charms

➤ Ability

Any burst ability

Pros / Cons

  • ✔ Huge single-shot & pierce
  • ✔ Max status stacks in one hit
  • ✔ Ammo efficient
  • ✘ Long reload without charms
  • ✘ Aim-dependent, weak vs scattered foes

Depth 30 variant

Reload is the bottleneck. Stack reload-speed charms and mods so you keep firing through dense elite waves at Depth 30.

Harpoon Gun fire modes

Pick one primary and one secondary fire mode at the Workbench. Each weapon has three of each.

Primary fire

  • Piercing Harpoons — Piercing, high knockback on Weakspots; builds Combo Points.
  • Ricocheting Harpoons — Ricochet to a new target on Weakspots; builds Combo Points.
  • Pinning Harpoons — Attach and deal damage over time; build Combo while attached.

Secondary fire

  • Barbed Harpoons — Spend Combo Points for burst DoT.
  • Binding Harpoons — Pull enemies in; scales with Combo Points.
  • Brine-Powered Harpoons — Large piercing harpoon scaling with Combo Points.

Harpoon Gun Ancient Forge upgrades

Weapon-specific Forge mods that reshape how the Harpoon Gun plays.

How to unlock the Harpoon Gun

Added in the Update 1.2 "Brinefrost" patch — a naval weapon that fires piercing harpoons for massive single-shot damage.

Customise this build in the Build Creator →

Other weapons

S

Disc Thrower

Ricochet / highest ceiling
S

Tesla Gun

Room clear / best solo & beginner S-tier
S

Plasma Launcher

AoE ceiling / room deleter
S

Brine Revolver

Single-target / boss melter