The Cultists are Hardmode, post-Golemenemies that spawn along with a Mysterious Tablet at the entrance to the Dungeon after Golem has been defeated. Four Cultists will appear there: two Cultist Archers and two Lunatic Devotes. Defeating all four of the Cultists causes the Lunatic Cultistboss to spawn instantly at their location, destroying the Mysterious Tablet in the process. Defeating the Lunatic Cultist then initiates the Lunar Events.
Until one of the Cultists is attacked, they are passive and deal no contact damage, and players can walk through them freely without activating them. Attacking any of the four will awaken the Archers, who will begin to fire Wooden Arrows using bows and will deal contact damage. Lunatic Devotes are always passive and never deal contact damage.
All four Cultists respawn and reset their location and initial passive state after one in-game day, if the Lunatic Cultist was not summoned, if the player runs away or dies during the fight, when all four Celestial Towers are destroyed, or when the world is closed and restarted. Restarting the world can be the fastest option to reset them to their original state.
The bottom of the Dungeon entrance is unchanged (or has been replaced by other blocks, but with the same dimensions). The entrance's roof is at minimum 10 and at maximum 13 blocks above the floor. There are no player-placed background walls in this area.Verify
Passive Cultists can be activated inadvertently in the following ways:
Although minions will not attempt to attack passive Cultists, minions that deal contact damage may incidentally damage Cultists. However, Sharknadoes might target passive Cultists with a ranged attack if coming too close.
The Mechanical Cart's lasers will sometimes target passive Cultists. If the Mechanical Cart is used as a way to reach the Dungeon quickly, it should be considered placing the end of the track further away from the Dungeon's entrance.
If one of the Cultists is killed in one hit (e.g. with the Sniper Rifle while wearing Shroomite armor), the other Cultists will remain passive and the music will not change. The Lunatic Cultist will still spawn when all Cultists are killed, however.
Attacking any of the Cultists will cause the Devotes' animation to speed up and the music will change to the Golem theme. This is a relatively easy way to get the Music Box for the boss music, since it does not actually require fighting a boss.
The Cultist Archers will not despawn, so they may follow the player large distances if there is a clear path.
As they do not move on their own and are insensitive to knockback, the only way to move a Devote is by destroying the blocks under their feet, teleporting them or using a hoik.
If the Lunatic Devotes are killed and Cultist Archers are lured away and killed far away, the Lunatic Cultist will not spawn. The Cultists will not respawn, either. This can be fixed by reloading the world.
Trivia
A White Cultist Archer character appears in the game files, but never actually spawns. The source code also contains statistics for the following characters, although no graphics are included for them, and they similarly never spawn: Blue Cultist Caster, Blue Cultist Fighter, White Cultist Caster, and White Cultist Fighter. Banners (along with Banner graphics) are included for these, but are currently unobtainable. Out of these, only the White Cultist Archer can be spawned, and only with hacks or mods. Aside from appearance, the White Cultist Archer is completely identical to the Blue Cultist Archer.
Despite the Archers using what appears to be a Wooden Bow with Wooden Arrows, which will deal 9 base damage when used by a player, their ranged attack will deal 80 damage in normal mode and 160 in expert.
See also
Cultist set, a vanity set that resembles the Cultists, sold by the Clothier.