Only their tails can be hurt
Monster ID 14
Layer Monster
Movement Snake
First appears DROD 2.0
Is required Yes
Is brain visible Head: No, Body: Yes
Traverses shallow water Yes
For the DROD RPG monster, see Giant wyrm (RPG).

Rattlesnakes, formally named rattleserpents, are huge blue reptiles that live deep in the Beneath. Their thick plated skin renders them invulnerable to most attacks, although their tails are weak. Their bulk prevents them from moving diagonally.


Rattlesnakes are subtle creatures, attuned to the secret vibrations of the soil. They're normally much larger than any other creature around, some having been sighted that are hundreds of feet in length. Thousands, if using actual feet. They usually feed on smaller animals, using their long bodies to restrict their prey's movement until closing in for the kill. As they're so large, they do have trouble changing direction and can't make sharp turns. Even more concerning is that their mighty body muscles, which propel them along the ground, aren't capable of subtle correction. One of the things rattlesnakes have given up to grow to such a size, in fact, is any ability to fine-tune their movement. Their motion is chaotic and hard to predict, though not entirely random.

Experienced smitemasters don't let this weakness fool them, however, into thinking rattlesnakes are easily dealt with. Rattlesnake muscles are strong enough to resist even the greatest of pressures. Their skin is hard as rock. Smitemasters will occasionally -- if they relish the prospect of carrying a heavy roll of skin up a mile or so of stairs -- roll up rattlesnake skin and sell it aboveground, where it's used as a kind of leather. It isn't that flexible or easy to work with, but it's incredibly durable and very strong. The only problem is getting some, as it's heavy... and on rattlesnakes.



Rattlesnake behavior is more complex than most monsters', but not unlearnable. Rattlesnake movements follows these rules:

  • If the rattlesnake's prey is directly in front of behind it, it will try to move forward.
  • Otherwise, the rattlesnake will try to move vertically or horizontally toward its prey until they are in the same row or column.
  • The rattlesnake will alternate between moving horizontally and moving vertically every five moves. If the spawn counter ends in 0-4, the rattlesnake will prefer to move horizontally. If the spawn counter ends in 5-9, the rattlesnake will prefer to move vertically.
  • If the rattlesnake's desired move is blocked, then it will try to make the following moves in order: N, E, S, W. If the rattlesnake cannot move, it does nothing.


  • Rattlesnakes are vulnerable at their tails to hot tiles, floor spikes, and sharp weapon strikes. When a rattlesnake is damaged, it shrinks by one tile from the tail.
  • Rattlesnakes are vulnerable to fire traps, puffs, being dropped into pits and water, and their heads being blown up. Rattlesnake bodies are immune to all other attacks, including briar.

Other Edit

  • Rattlesnakes can traverse shallow water.
  • A rattlesnake's head is a brain-visible object, but the rest of its body is invisible.
  • Rattlesnakes can't move across any type of potion or horn.
Game elements
Room pieces layer FloorWallBroken wallStairsPitLevel clear gateRoom clear gateYellow doorTarstuff gateTrapdoor gateTrapdoorTunnelPlatformOremitesHot tilePressure plateBridgeShallow waterStepping stoneFloor spikesThin iceFiretrapFluff ventMaster wallHold complete wall
Floor controls layer Ortho squareForce arrowCheckpoint
Items layer TarstuffObstacleInvisibility potionMimic potionScrollOrbSpeed potionBriarBombFuseTokenDecoy potionClone potionLight poleRelay stationSquad hornSoldier hornSeeding beaconFluffMirrorPowder keg
Monster layer RoachRoach queenRoach eggGoblinNeatherWraithwingEvil eyeSerpentTarstuff motherTarstuff babyBrainMimicSpiderRattlesnakeAdderRock golemWater skipperWater skipper nestAumtlichCloneDecoyWubbaSeepStalwartHalphSlayerFegundoGuardCharacterCitizenRock giantEngineerSoldierConstructGentryiiTemporal clonePuff