How to Get the Poison Spear in 99 Nights in the Forest

The Poison Spear is the Frog King's signature melee drop — 25 damage, a 0.5s swing and poison on every hit. How to get the 8 Frog Keys, reach the Frog Cave, and beat the boss.

Updated 2026-09-30

The Poison Spear is the melee weapon that comes out of the Frog Invasion content — a spear that hits exactly as hard as the basic Spear but poisons whatever it touches. It is the prize from one of the game's more involved side-bosses, the Frog King, and the drop is not generous.

This page covers the numbers, the full Frog King route (keys, whirlpool, cave, boss), the drop rates, and the detail most guides skip: the Poison Spear is a strict upgrade to the Spear you already have.

Last verified: 2026-09-30.

Quick Answer

QuestionAnswer
WhereFrog King's reward chest (the "Frog Chest") — and fishing the frog pond in his cave
Drop rate~3% — the rarest single item in the frog pool
Damage25 base (32.5 as Brawler, 40 with a fully boosted Berserker)
Swing rate0.5 seconds — identical to the basic Spear
SpecialPoisons enemies on hit — they keep taking damage after the strike
Added22 August 2025, the Frog Invasion update
Best classBrawler (32.5), with the poison stacked on top
Worth it?Yes if you are clearing the Frog King anyway — it is a free upgrade to any Spear

What It Does

StatValue
Damage25 base; 32.5 with Brawler; 40 with a fully boosted Berserker
Swing rate0.5 seconds (~50 damage per second on the base figure)
EffectPoison on hit — enemies keep losing health after you stop swinging
ReachSpear-class — long enough to jab and step back

25 damage is modest, and it is the same 25 the ordinary Spear deals. What you are buying is the poison rider: every hit keeps working after the hit. That is what earns it a place in the S-tier conversation on Best Weapons despite the small per-hit number — in a game where the strong melee weapons all make you stand still for a long swing, a weapon that keeps dealing damage while you back off is genuinely useful against groups.

Poison Spear vs Spear

The comparison is short, because the two weapons are the same weapon plus one effect:

SpearPoison Spear
Damage2525
Swing rate0.5s0.5s
EffectNonePoison on hit
SourceCraftable; chests; Pelt TraderFrog King (~3%)

The Poison Spear is a strict upgrade — same damage, same speed, plus a damage-over-time effect. The only cost is how hard it is to get. The basic Spear is craftable early and the Pelt Trader offers it on his second rung, while the Poison Spear is a low-percentage boss drop. If you already fight with a Spear, this is the upgrade path.

How to Get It — The Frog King Route

Five separate guides describe the same chain, which makes this one of the cleaner side-bosses to document. The whole thing is gated behind eight keys:

1. Collect 8 Frog Keys. Each key sits in a different pond across the forest, as a glowing object in the water. One pond, one key. The catch is not the finding — it is that frog species patrol the pond edges, so secure the glowing item fast or clear the area first.

2. Find the giant whirlpool. With all eight keys, go to the giant whirlpool on the map and jump in. It pulls you down into the Frog Cave.

3. Open the locked door. Inside the cave is a locked door that needs all 8 keys placed at once. If you are even one short, the mechanism will not trigger — check your count before diving, or you have wasted the run.

4. Defeat the Frog King. Behind the door is the Frog King boss arena. The chest cannot be opened until he is dead, so plan to finish the fight in the same trip.

5. Open the reward chest. His chest holds the Frog Invasion loot — and the Poison Spear is the rarest item in it.

The Drop Table

Sources give the same four figures, and they are all low:

ItemDrop rate
Poison Spear3%
Poison Armor1%
Blowdart1%
Frog Boots1%

Read that top number carefully. At 3%, the Poison Spear is roughly a 1-in-33 clear of the Frog King. Budget for repeated runs, and treat any guide that describes it as a guaranteed drop as wrong.

The Second Route: Fishing the Cave Pond

There is a slower alternative that does not need the boss chest: fish the frog pond inside the Frog Cave. One source (Gamezebo's frog-secrets writeup) reports the pond uses the same drop pool and the same rates (Poison Spear 3%, Poison Armor 1%, Blowdart 1%, Frog Boots 1%), which is how you fill in a piece the chest roll did not give you.

Two other guides list "fishing" or "the Frog Pond" as a Poison Spear source without publishing rates, which corroborates the location even if the exact pond rates rest on one source. The practical version: clear the Frog King, then fish his pond while you are already down there.

Other Reported Sources

Two one-off mentions are worth knowing but not relying on:

  • Jungle Chest — listed by 99-nights-in-the-forest.com as a third route.
  • gold Presents — rblxguide lists the Poison Spear inside gold Presents, which reads as a seasonal gift rather than a permanent source.

Both come from a single guide each, so treat them as "maybe" rather than a farm plan.

The Rest of the Frog Set

The Poison Spear is not the only reason to fight the Frog King — the same chest feeds a small poison-themed kit:

  • Poison Armor (1%) — the defensive piece; defense plus poison resistance.
  • Blowdart / Blowpipe (1%) — a poisoned ranged option. Some guides place it in the Frog Cave and the Poison Master class, which is the ranged half of the poison build.
  • Frog Boots (1%) — the utility drop from the same pool.

The Poison Master class (200 Diamonds) is the themed match for all of this: the class list describes it as "strong poison damage and spread". Note the distinction, though — the Poison Spear is a boss drop, not a class starter. Buying the class does not hand you one; you still have to clear the Frog King for it.

FAQ

Can I craft the Poison Spear? No recipe exists. It is a drop from the Frog King's chest, or a rare catch from fishing his pond.

Is it guaranteed from the Frog King? No. It is the rarest item in the chest at about 3%, so expect several clears.

Where do I get the Frog Keys? Eight of them, one per pond across the forest, each a glowing object in the water. You need all eight to open the cave door.

How do I enter the Frog Cave? Jump into the giant whirlpool on the map with all eight keys in hand.

Is it better than the Spear? Yes — identical 25 damage and 0.5-second swing, plus poison on hit. Same weapon, one extra effect.

Does the Poison Master class give me one? No. The class is poison-themed, but the Spear is a Frog King drop, not a class item.

What else drops from the Frog King? Poison Armor (1%), Blowdart (1%) and Frog Boots (1%), alongside the spear.

Sources

Checked 2026-09-30. The Frog King route — collect 8 Frog Keys (one per pond), jump the giant whirlpool into the Frog Cave, unlock the door with all eight, defeat the boss and open his chest — is described identically by Roonby (twice), Backyard Drunkard, Noleep and Matrix Perfect's frog-secrets writeup, and the drop rates (Poison Spear 3%, Poison Armor 1%, Blowdart 1%, Frog Boots 1%) are the same across all of them. The stats — 25 base damage, 0.5-second swing, poison on hit, and the 22 August 2025 Frog Invasion addition — come from 99-nights-in-the-forest.com's item page, with the 25 base figure corroborated by TechWiser's all-weapons list. The fishing route and its rates are single-source (Gamezebo's frog secrets via Matrix Perfect), with TechWiser and 99-nights-in-the-forest.com corroborating the location but not the numbers. The Jungle Chest mention is 99-nights-in-the-forest.com alone, and the gold Presents mention is rblxguide alone; both are flagged as single-source. We did not use 99nightsintheforest.wiki, which publishes a "poison for 3 seconds" duration figure and a chain of other unverifiable details. One aggregator caution: rblxguide lists the Poison Spear's damage as "2,532.54" — a formatting bug that has run the base and scaled values together (25 / 32.5 / 40), the same glitch that turns the Katana's 25 / 32.5 into "2,532". Do not trust that number if you land on it.

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