Rock Golem

Type	Enemy
Environment	Cavern
AI Type	Fighter AI
Damage	85/170/255; 40 / 42 80 / 170 120 / 382 (ranged attack)
Max Life	1000/2000/3000
Defense	35
KB Resist	90%/91%/92%
Banner	Rock Golem Banner
Immune to
Coins	51250
Hurt	https://terraria.fandom.com/wiki/File:NPC_Hit_41.wav
Killed	https://terraria.fandom.com/wiki/File:NPC_Killed_43.wav

Desktop/Mobile-Only Content: This information applies only to the Desktop and Mobile versions of Terraria.

The Rock Golem is a powerful Hardmode enemy that spawns in the Cavern layer. It throws rocks at players that are out of contact range.

When being attacked, it continues to attack, making stun-lock options unusable.

Notes[]

The Rock Golem can only spawn on Stone Blocks. It will never spawn in the Ice biome, even if there is stone present.^[1]

The Rock Golem drops the second most coins of any non-boss enemy (second only to Mimics), tied with the Nymph, Pirate Captain, and Paladin, and the most of any enemy that is not considered rare by the Lifeform Analyzer.
The Rock Golem and Gem trees are the only renewable sources of Stone Blocks in a world.

The Bestiary entry for the Rock Golem: "Dense-minded living stone formation. Awaits weary cavern dwellers to pound them into juicy rubble."

Desktop 1.4.1: Fixed an issue where the Rock Golem's projectile damage scaled twice, resulting in it doing far more than it should have, especially in Expert/Master.

↑ Information taken from the Desktop 1.4.1.2 source code, method SpawnNPC_CheckToSpawnRockGolem() in Terraria.NPC.cs. There may be inaccuracies, as the current Desktop version is 1.4.2.3.