Terraria Map
Stats
| Classic | Expert | Master | |
|---|---|---|---|
| Life | 300 | 600 | 900 |
| Contact damage | 36 | 72 | 108 |
| Defense | 12 | 12 | 12 |
| Knockback resistance | 100% | 100% | 100% |
| Coin value | 12 silver | 30 silver | 30 silver |
Where and when it spawns
- Biomes
- The Underworld
Drops
| Item | Chance | Amount | Modes | Condition |
|---|---|---|---|---|
 Hotdog | 3.33% (1 in 30) | 1 | All modes | |
 Bone Serpent Kite | 6.67% (1 in 15) | 1 | All modes | Drops on Windy Days |
Chances are for one kill, before Luck, Rate of fire or banners change anything. The Modes column says in which difficulties the game lists the drop.
Skeletal behemoths of the underworld abyss
Bone Serpents are gargantuan segmented worms that glide through the ash layers and lava lakes of the Underworld. Composed of multiple articulated skeletal segments, they burrow through solid ash and burst into open caverns without warning. The serpent sports 300 health and 12 defense, using its segmented body to encircle players attempting to construct horizontal boss runways.
Piercing skeletal segments across lava lakes
Combating a Bone Serpent requires weapons with piercing capabilities or swinging broadswords to damage several segments simultaneously. Their heads inflict 36 damage in Classic, scaling to 72 in Expert. Defeating this underworld predator yields the Hotdog food item at a 3.33% rate, alongside the decorative Bone Serpent Kite at a 6.67% drop chance.
Trivia
- Bone Serpents can swim through lava reservoirs without suffering any burn damage.
- Only the head and tail segments deal maximum contact damage.