Terraria is on of Steam’s most-beloved sport, and for good purpose. It blends components of traditional motion video games with the liberty of sandbox-style creativity, all of this obtainable to expertise in numerous problem modes!
With numerous problem modes come completely different occasions and phenomena, one such phenomenon being the phrase “The air is getting colder around you…”. This standing message has to do with one of many unique Hardmode bosses of Terraria, Skeletron Prime.
Related: All Terraria Bosses in Order
Skeletron Prime is a Hardmode mechanical boss which is, at its essence, a more difficult version of Skeletron. It consists of a head and four limbs, but similarly to Skeletron, only the head needs to be beaten to defeat the boss.
Skeletron Prime can be summoned manually using a Mechanical Skull at night (7:30 PM to 4:30 AM), while also having a 1/10 (10%) chance to spawn naturally at dusk once a Demon or Crimson Altar has been destroyed, as long as it has not been defeated yet at least once in the current world. If spawning this way, its arrival is announced by the status message “The air is getting colder around you…”.
If Skeletron Prime is not defeated by dawn, it will start behaving much like a Dungeon Guardian, ceasing to use its limbs and charge at the player at extremely high speeds instead, dealing usually lethal damage upon contact.
According to the official lore of the game, Skeletron Prime was one of the three mechanical recreations of Cthulhu’s lacking organs, whereas being a recreation of a part of Cthulhu’s skeleton.