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Frost Moon

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BiomeBannerFrostMoon.png
Not to be confused with the Frost Legion, another summoned event.

Frost Moon.png"The Frost Moon is rising..."Frost Moon.png

The Frost Moon is a post-Plantera, Christmas-themed event summoned with the Naughty Present any time at night, ending at dawn (4:30 AM). It can be summoned at any time of the year and does not require the actual Christmas season. During the event, unique and highly difficult enemies spawn at high rates and attack the player. It is similar to the Pumpkin Moon event, but is more difficult and includes slightly more content. Visually, the moon turns into a snowman head, though remaining in its current phase.

The entire event consists of 15 waves, plus 5 "bonus waves". Waves progress as the player reaches certain kill scores (though kill scores are not displayed to the player before wave 20). After a wave's required score is met, the next wave begins, and the kill score is reset to 0. Status messages will indicate when the wave has advanced, and which wave has been achieved. See the table below for the points awarded for each enemy and the score required for each wave.

The Frost Moon event always ends at 4:30 AM. The goal of the event is to progress through all 20 waves before the event ends, although the Desktop, Console, and Mobile versions achievement for the event is awarded at wave 15.[1]

The Naughty Present, which summons the Frost Moon, requires materials only available in Hardmode worlds where the player has already defeated Plantera (although it can still be summoned in pre-Hardmode worlds). As such, it is intended to present a challenge even to players with the best possible equipment. In the final waves, multiple boss-level enemies are fought at once.

Frost Moon enemies drop powerful weapons, as well as pet and vanity items. Most drop with extreme rarity, and even players who manage to complete the event will find they need to do so several times before obtaining them. Drop chances for items dropped by bosses increase as waves are completed. See the section below for a more detailed description of the rates at which loot and trophies drop.

On the Desktop version Desktop version, reaching wave 20 of the Frost Moon will unlock one in-game day of Christmas, regardless of the date.[2]

Contents[edit | edit source]

Waves[edit | edit source]

Points per kill [1]
Enemy Pre-1.3 1.3Desktop, Console, and Mobile versions ExpertDesktop, Console, and Mobile versions
Zombie Elf 1 2
Gingerbread Man 2 4
Elf Archer 3 6
Nutcracker 4 8
Flocko 5 0 0
Elf Copter 8 16
Krampus 10 0 0
Yeti 18 36
Present Mimic 20 40
Everscream 50 100
Santa-NK1 100 200
Ice Queen 150 300
Wave scores & enemies [1]
Wave Points Required Enemies
1 0 Zombie Elf and Gingerbread Man
2 25 Zombie Elf and Elf Archer
3 40 Zombie Elf, Elf Archer, Gingerbread Man, and Nutcracker
4 50 Everscream, Zombie Elf, Elf Archer, and Gingerbread Man
5 80 Everscream, Zombie Elf, Elf Archer, and Nutcracker
6 100 Everscream, Elf Archer, Nutcracker, and Elf Copter
7 160 Santa-NK1, Gingerbread Man, Elf Archer, and Zombie Elf
8 180 Santa-NK1, Elf Copter, Elf Archer, Nutcracker, and Krampus
9 200 Santa-NK1, Everscream, Nutcracker, Elf Copter, and Gingerbread Man
10 250 Santa-NK1, Everscream, Krampus, Zombie Elf, and Elf Copter
11 300 Ice Queen, Flocko, Zombie Elf, and Gingerbread Man
12 375 Ice Queen, Everscream, Gingerbread Man, Yeti, and Zombie Elf
13 450 Ice Queen, Santa-NK1, Elf Copter, Gingerbread Man, and Flocko
14 525 Ice Queen, Santa-NK1, Everscream, Yeti, and Krampus
15 675 Ice Queen, Santa-NK1, Everscream, Yeti, and Elf Copter
16 850 Ice Queen, Santa-NK1, Everscream, Yeti, and Flocko
17 1025 Ice Queen, Santa-NK1, Everscream, Yeti, Krampus, and Elf Copter
18 1325 Ice Queen, Santa-NK1, Everscream, Yeti, Nutcracker, and Krampus
19 1550 Ice Queen, Santa-NK1, Everscream, and Yeti
20 2000 Ice Queen, Santa-NK1, and Everscream
  • Total points required to reach wave 15: 3410, wave 20: 10160
  • Present Mimics may spawn at any wave, instead of wave-appropriate enemies, if there are currently less than four Present Mimics around.
  • The maximum number of bosses at once depends on the wave. While this number is reached (or possibly exceeded, for example if the player manages to somehow reach wave 9 without killing two Everscreams from wave 6), no more of this type of boss will spawn.
Boss spawn limits [3]
Wave Everscream
Everscream
Santa-NK1
Santa-NK1
Ice Queen
Ice Queen
4 1 - -
5 1 - -
6 2 - -
7 - 1 -
8 - 1 -
9 1 1 -
10 1 2 -
11 - - 1
12 1 - 1
13 - 1 1
14 1 1 1
15 3 2 1
16 4 2 2
17 5 3 2
18 6 4 3
19 7 5 4
20 Unlimited

Loot[edit | edit source]

  • All of the boss-type enemies (Ice Queen, Santa-NK1 and Everscream) have increased chances to drop loot in later waves. This chance starts at a 10% (20%) chance in wave 4, and grows at a nonlinear increasing rate up to 16.67% (100%) by wave 15, continuing to 25% (100%) by wave 20.[4]
    • The above chance does affect trophies as of version 1.4.0.1Desktop version; in all other versions, trophies are not also affected by the above chance.
    • The exact formula for the drop chance is 1 divided by the maximum of either of: 30 minus W then divided by 2.5 and rounded down, then subtract E; or 1, where W is the current wave number (plus 7 if in ExpertDesktop, Console, and Mobile versions or Master ModeDesktop version), and E is 0 in Classic or 2 in Expert/Master. LuckDesktop version does affect this chance.[4]
  • In all versions, trophies have their own, seperate chance to drop (which, on Desktop version Desktop, also applies alongside the general drop chance, as explained above). Starting at wave 15 (or, on Console version Console and Mobile version Mobile, at wave 8 in Expert Mode), there is a chance each Ice Queen, Santa-NK1 and Everscream killed will drop its respective trophy. This chance increases at wave 17, and again at wave 19; on Console version Console and Mobile version Mobile in Expert Mode, these increases instead happen at wave 10 and at wave 12, respectively. On Desktop version Desktop, Luck does not affect this chance. The trophy drop rates for each version in each wave are shown in the table below.[5]
Wave Trophy Chance Actual Trophy Drop Rate
Classic / Desktop version Expert Console VersionMobile version Expert Classic Desktop, Console, and Mobile versions Expert Desktop version Classic Console VersionOld-gen console versionMobile version3DS version Classic Desktop, Console, and Mobile versions Expert
15 8 1 in 4 3 in 11 4.17% 25% 27.27%
16 9 1 in 4 3 in 11 5% 25% 27.27%
17 10 1 in 3 3 in 8 6.67% 33.33% 37.5%
18 11 1 in 3 3 in 8 8.33% 33.33% 37.5%
19+ 12+ 1 in 2 3 in 5 12.5% 50% 60%

Notes[edit | edit source]

  • The Frost Moon event will sometimes end after leaving and then reentering the world.
  • On the Console version Console version and Mobile version Mobile version, Everscream, Santa-NK1 and Ice Queen can drop their trophies as early as wave 8 in Expert ModeDesktop, Console, and Mobile versions.[4]
  • Water Candles, Peace Candle, Battle Potions and Calming Potions have no effect during the invasion, as the same with some other events.
  • If the player is killed during the event, the event is not canceled. The player will keep re-spawning and can continue fighting its enemies as the event continues until dawn. In single-player games, exiting the world and reloading it will cancel the event.
  • The Frost Moon does not stack with the Blood Moon. Summoning the Frost Moon while a Blood Moon is active will result in a regular Frost Moon.
  • Summoning a Pirate Invasion during a Frost Moon will cancel it.
  • Any boss enemies that are still on a player's screen by the time dawn breaks will begin to move rapidly in a single direction, rushing off-screen to despawn. It is still possible to pursue or even kill some bosses while this is occurring.
  • Lingering enemies beaten after the event is over will never drop any rare items.

Achievement[edit | edit source]

Achievement Ice Scream.png
Ice Scream • “Reach the 15th wave of a frost moon, where the festive season quickly degrades into madness.”
Reach the 15th wave of a Frost Moon. Desktop, Console, and Mobile versions

Tips[edit | edit source]

For more elaborate strategies on defeating Frost Moon, including weapon and arena recommendations, see Guide:Frost Moon strategies.
  • Because spawn rates for areas where Frost Moon enemies cannot spawn are also increased, a Frost Moon can be used to farm for other items, e.g., Pirate Maps at the Ocean, while completely avoiding the Frost Moon enemies.
  • The Frost Moon enemies are susceptible to the Ichor debuff, which makes a Flask of Ichor, Ichor Arrows or Bullets, or the Golden Shower very effective.
  • Players should kill the enemies as soon as they spawn to ensure that more enemies can spawn continuously in order to increase the chances of reaching later waves.
  • The Frost Moon can be a great way to obtain a large amount of coins quickly.
  • A good potion to use is the Warmth Potion as it decreases damage significantly from enemies in the event.
  • Try to make a trap area, this does not mean an AFK Farm but a location fixed with traps. Use this farm with a lever to keep the traps on and keep them on while you fight the mini bosses. This could help with the mobs while you fight mini bosses.

Trivia[edit | edit source]

  • The Frost Moon was the hardest event in the game until update 1.3.0.1Desktop, Console, and Mobile versions, after which it was beaten by the Lunar Events.
  • This is one of the few post-1.2 features available on the 3DS version.

History[edit | edit source]

  • Desktop 1.2.3.1:
    • Made it slightly easier to advance in Frost Moon waves.
    • Made several Frost Moon monsters shoot slower and do less damage.
  • Desktop 1.2.3:
    • Pumpkin Moon and Frost Moon can now be started when using a Snowman pet.
    • All waves in Frost Moon correctly use "Flocko" in the warning.
    • Flocko & Elf Copter now both correctly run away at dawn.
    • Fixed frost moon wave display text (Elf Zombie to Zombie Elf).

References[edit | edit source]

  1. 1.0 1.1 1.2 Information taken from the Desktop version Desktop 1.4.0.5 source code, method CheckProgressFrostMoon() in Terraria.NPC.cs
  2. Information taken from the Desktop version Desktop 1.4.0.5 source code, method CheckForMoonEventsStartingTemporarySeasons() in Terraria.Main.cs
  3. Information taken from the Desktop version Desktop 1.4.0.5 source code, method SpawnNPC() in Terraria.NPC.cs
  4. 4.0 4.1 4.2 Information taken from the Desktop version Desktop 1.4.0.5 source code, method RegisterBoss_FrostMoon() in Terraria.GameContent.ItemDropRules.ItemDropDatabase.cs and class FrostMoonDropGatingChance in Terraria.GameContent.ItemDropRules.Conditions.cs
  5. For trophies, Expert Mode has a 1/3 (33.33%) chance of reducing the denominator by 1 compared to Classic Mode; e.g. in Expert Mode on wave 15 on Desktop version Desktop (or on wave 8 on Console version Console and Mobile version Mobile), there is a 2/3 chance that the drop rate will be 1 in 4 (25%), but a 1/3 chance that the drop rate will be 1 in 3 (33.33%); thus, the average of these outcomes is 1 divided by the result of dividing 4 plus 4 plus 3 by 3 ≈ 27.27%; on Desktop version Desktop, this does not take into account the overall item drop chance. Information taken from the Desktop version Desktop 1.4.0.5 source code, method RegisterBoss_FrostMoon() in Terraria.GameContent.ItemDropRules.ItemDropDatabase.cs and class FrostMoonDropGateForTrophies in Terraria.GameContent.ItemDropRules.Conditions.cs