diff --git a/habitica-images b/habitica-images
index 98642906db..1ad97507b9 160000
--- a/habitica-images
+++ b/habitica-images
@@ -1 +1 @@
-Subproject commit 98642906db7725c9ca8663e2d69ac05aa7c2db9c
+Subproject commit 1ad97507b9ce6f000fda0833216f94aba7639e06
diff --git a/website/client/src/assets/css/sprites/spritesmith-main.css b/website/client/src/assets/css/sprites/spritesmith-main.css
index d296e20b4c..32c7848d85 100644
--- a/website/client/src/assets/css/sprites/spritesmith-main.css
+++ b/website/client/src/assets/css/sprites/spritesmith-main.css
@@ -1055,6 +1055,11 @@
   width: 141px;
   height: 147px;
 }
+.background_elegant_palace {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_elegant_palace.png');
+  width: 141px;
+  height: 147px;
+}
 .background_enchanted_music_room {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_enchanted_music_room.png');
   width: 141px;
@@ -1751,6 +1756,11 @@
   width: 141px;
   height: 147px;
 }
+.background_nighttime_street_with_shops {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_nighttime_street_with_shops.png');
+  width: 141px;
+  height: 147px;
+}
 .background_ocean_sunrise {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_ocean_sunrise.png');
   width: 141px;
@@ -2437,6 +2447,11 @@
   width: 141px;
   height: 147px;
 }
+.background_winter_desert_with_saguaros {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_winter_desert_with_saguaros.png');
+  width: 141px;
+  height: 147px;
+}
 .background_winter_fireworks {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/background_winter_fireworks.png');
   width: 141px;
@@ -29455,6 +29470,11 @@
   width: 60px;
   height: 60px;
 }
+.back_armoire_harpsichord {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/back_armoire_harpsichord.png');
+  width: 114px;
+  height: 90px;
+}
 .body_armoire_clownsBowtie {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/body_armoire_clownsBowtie.png');
   width: 114px;
@@ -29845,6 +29865,11 @@
   width: 114px;
   height: 90px;
 }
+.broad_armor_armoire_loneCowpokeOutfit {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_armoire_loneCowpokeOutfit.png');
+  width: 114px;
+  height: 90px;
+}
 .broad_armor_armoire_lunarArmor {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_armoire_lunarArmor.png');
   width: 90px;
@@ -30480,6 +30505,11 @@
   width: 114px;
   height: 87px;
 }
+.head_armoire_loneCowpokeHat {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_armoire_loneCowpokeHat.png');
+  width: 114px;
+  height: 90px;
+}
 .head_armoire_lunarCrown {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_armoire_lunarCrown.png');
   width: 90px;
@@ -30790,6 +30820,11 @@
   width: 114px;
   height: 90px;
 }
+.shield_armoire_doubleBass {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_armoire_doubleBass.png');
+  width: 114px;
+  height: 90px;
+}
 .shield_armoire_dragonTamerShield {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_armoire_dragonTamerShield.png');
   width: 90px;
@@ -30995,6 +31030,11 @@
   width: 90px;
   height: 90px;
 }
+.shield_armoire_prettyPinkGiftBox {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_armoire_prettyPinkGiftBox.png');
+  width: 114px;
+  height: 90px;
+}
 .shield_armoire_ramHornShield {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_armoire_ramHornShield.png');
   width: 90px;
@@ -31465,6 +31505,11 @@
   width: 114px;
   height: 90px;
 }
+.slim_armor_armoire_loneCowpokeOutfit {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_armoire_loneCowpokeOutfit.png');
+  width: 114px;
+  height: 90px;
+}
 .slim_armor_armoire_lunarArmor {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_armoire_lunarArmor.png');
   width: 90px;
@@ -31760,6 +31805,11 @@
   width: 114px;
   height: 90px;
 }
+.weapon_armoire_bambooFlute {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_armoire_bambooFlute.png');
+  width: 114px;
+  height: 90px;
+}
 .weapon_armoire_barristerGavel {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_armoire_barristerGavel.png');
   width: 90px;
@@ -32170,6 +32220,11 @@
   width: 114px;
   height: 90px;
 }
+.weapon_armoire_prettyPinkParasol {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_armoire_prettyPinkParasol.png');
+  width: 114px;
+  height: 90px;
+}
 .weapon_armoire_pushBroom {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_armoire_pushBroom.png');
   width: 114px;
@@ -34060,6 +34115,46 @@
   width: 90px;
   height: 90px;
 }
+.back_mystery_202601 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/back_mystery_202601.png');
+  width: 114px;
+  height: 90px;
+}
+.back_mystery_202602 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/back_mystery_202602.png');
+  width: 114px;
+  height: 90px;
+}
+.broad_armor_mystery_202512 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_mystery_202512.png');
+  width: 114px;
+  height: 90px;
+}
+.head_mystery_202512 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_mystery_202512.png');
+  width: 114px;
+  height: 90px;
+}
+.head_mystery_202602 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_mystery_202602.png');
+  width: 114px;
+  height: 90px;
+}
+.slim_armor_mystery_202512 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_mystery_202512.png');
+  width: 114px;
+  height: 90px;
+}
+.weapon_mystery_202512 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_mystery_202512.png');
+  width: 114px;
+  height: 90px;
+}
+.weapon_mystery_202601 {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_mystery_202601.png');
+  width: 114px;
+  height: 90px;
+}
 .back_mystery_201402 {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/back_mystery_201402.png');
   width: 90px;
@@ -38640,6 +38735,26 @@
   width: 114px;
   height: 90px;
 }
+.broad_armor_special_winter2026Healer {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_special_winter2026Healer.png');
+  width: 114px;
+  height: 90px;
+}
+.broad_armor_special_winter2026Mage {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_special_winter2026Mage.png');
+  width: 114px;
+  height: 90px;
+}
+.broad_armor_special_winter2026Rogue {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_special_winter2026Rogue.png');
+  width: 117px;
+  height: 120px;
+}
+.broad_armor_special_winter2026Warrior {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_special_winter2026Warrior.png');
+  width: 114px;
+  height: 90px;
+}
 .broad_armor_special_yeti {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/broad_armor_special_yeti.png');
   width: 90px;
@@ -38935,6 +39050,26 @@
   width: 114px;
   height: 90px;
 }
+.head_special_winter2026Healer {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_special_winter2026Healer.png');
+  width: 114px;
+  height: 90px;
+}
+.head_special_winter2026Mage {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_special_winter2026Mage.png');
+  width: 114px;
+  height: 90px;
+}
+.head_special_winter2026Rogue {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_special_winter2026Rogue.png');
+  width: 117px;
+  height: 120px;
+}
+.head_special_winter2026Warrior {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_special_winter2026Warrior.png');
+  width: 114px;
+  height: 90px;
+}
 .head_special_yeti {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/head_special_yeti.png');
   width: 90px;
@@ -39115,6 +39250,16 @@
   width: 114px;
   height: 90px;
 }
+.shield_special_winter2026Rogue {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_special_winter2026Rogue.png');
+  width: 117px;
+  height: 120px;
+}
+.shield_special_winter2026Warrior {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_special_winter2026Warrior.png');
+  width: 114px;
+  height: 90px;
+}
 .shield_special_yeti {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/shield_special_yeti.png');
   width: 90px;
@@ -39355,6 +39500,26 @@
   width: 114px;
   height: 90px;
 }
+.slim_armor_special_winter2026Healer {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_special_winter2026Healer.png');
+  width: 114px;
+  height: 90px;
+}
+.slim_armor_special_winter2026Mage {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_special_winter2026Mage.png');
+  width: 114px;
+  height: 90px;
+}
+.slim_armor_special_winter2026Rogue {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_special_winter2026Rogue.png');
+  width: 117px;
+  height: 120px;
+}
+.slim_armor_special_winter2026Warrior {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_special_winter2026Warrior.png');
+  width: 114px;
+  height: 90px;
+}
 .slim_armor_special_yeti {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/slim_armor_special_yeti.png');
   width: 90px;
@@ -39595,6 +39760,21 @@
   width: 114px;
   height: 90px;
 }
+.weapon_special_winter2026Mage {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_special_winter2026Mage.png');
+  width: 114px;
+  height: 90px;
+}
+.weapon_special_winter2026Rogue {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_special_winter2026Rogue.png');
+  width: 117px;
+  height: 120px;
+}
+.weapon_special_winter2026Warrior {
+  background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_special_winter2026Warrior.png');
+  width: 114px;
+  height: 90px;
+}
 .weapon_special_yeti {
   background-image: url('https://habitica-assets.s3.amazonaws.com/mobileApp/images/weapon_special_yeti.png');
   width: 90px;
diff --git a/website/common/locales/en/backgrounds.json b/website/common/locales/en/backgrounds.json
index 9233a13d90..99c2cde29d 100644
--- a/website/common/locales/en/backgrounds.json
+++ b/website/common/locales/en/backgrounds.json
@@ -1051,6 +1051,18 @@
   "backgroundCastleKeepWithBannersText": "Castle Hall with Banners",
   "backgroundCastleKeepWithBannersNotes": "Sing tales of heroic deeds in a Castle Hall with Banners.",
 
+  "backgrounds122025": "SET 139: Released December 2025",
+  "backgroundNighttimeStreetWithShopsText": "Nighttime Street with Shops",
+  "backgroundNighttimeStreetWithShopsNotes": "Enjoy the warm glow of a Nighttime Street with Shops.",
+
+  "backgrounds012026": "SET 140: Released January 2026",
+  "backgroundWinterDesertWithSaguarosText": "Winter Desert with Saguaros",
+  "backgroundWinterDesertWithSaguarosNotes": "Breath the crisp air of a Winter Desert with Saguaros.",
+
+  "backgrounds022026": "SET 141: Released February 2026",
+  "backgroundElegantPalaceText": "Elegant Palace",
+  "backgroundElegantPalaceNotes": "Admire the colorful halls of an Elegant Palace.",
+
   "timeTravelBackgrounds": "Steampunk Backgrounds",
   "backgroundAirshipText": "Airship",
   "backgroundAirshipNotes": "Become a sky sailor on board your very own Airship.",
diff --git a/website/common/locales/en/gear.json b/website/common/locales/en/gear.json
index 8d9a9ed57a..c5a1702190 100644
--- a/website/common/locales/en/gear.json
+++ b/website/common/locales/en/gear.json
@@ -569,6 +569,15 @@
   "weaponSpecialFall2025MageText": "Masked Ghost Axe",
   "weaponSpecialFall2025MageNotes": "A mighty weapon to cut a safe path through an autumn forest full of frights. Increases Intelligence by <%= int %> and Perception by <%= per %>. Limited Edition Fall 2025 Gear.", 
 
+  "weaponSpecialWinter2026WarriorText": "Rime Scythe",
+  "weaponSpecialWinter2026WarriorNotes": "Scythes help cut, reap, and cover large areas--all things you need when refining a task list. Increases Strength by <%= str %>. Limited Edition Winter 2025-2026 Gear.",
+  "weaponSpecialWinter2026RogueText": "Ski Pole",
+  "weaponSpecialWinter2026RogueNotes": "Ski poles help you maintain balance, stability, and timing--all things you need to be truly productive. Increases Strength by <%= str %>. Limited Edition Winter 2025-2026 Gear.",
+  "weaponSpecialWinter2026HealerText": "Polar Staff",
+  "weaponSpecialWinter2026HealerNotes": "Staffs help with support, stability, and direction--all things that help you truly conquer a task list. Increases Intelligence by <%= int %>. Limited Edition Winter 2025-2026 Gear.",
+  "weaponSpecialWinter2026MageText": "Candelabra Staff",
+  "weaponSpecialWinter2026MageNotes": "Candelabras help by holding multiple candles at a time—follow its lead the next time you need to multitask. Increases Intelligence by <%= int %> and Perception by <%= per %>. Limited Edition Winter 2025-2026 Gear.",
+
   "weaponMystery201411Text": "Pitchfork of Feasting",
   "weaponMystery201411Notes": "Stab your enemies or dig in to your favorite foods - this versatile pitchfork does it all! Confers no benefit. November 2014 Subscriber Item.",
   "weaponMystery201502Text": "Shimmery Winged Staff of Love and Also Truth",
@@ -1386,6 +1395,15 @@
   "armorSpecialFall2025MageText": "Masked Ghost Armor",
   "armorSpecialFall2025MageNotes": "This seasonal armor becomes noncorporeal only after you put it on. Increases Intelligence by <%= int %>. Limited Edition Fall 2025 Gear.",
 
+  "armorSpecialWinter2026WarriorText": "Rime Reaper Suit",
+  "armorSpecialWinter2026WarriorNotes": "Icicles will snap and slide with every step on your way to completing your Dailies. Increases Constitution by <%= con %>. Limited Edition Winter 2025-2026 Gear.",
+  "armorSpecialWinter2026RogueText": "Ski Suit and Skis",
+  "armorSpecialWinter2026RogueNotes": "Go speedily swishing down the slopes on your way to completing your Dailies. Increases Perception by <%= per %>. Limited Edition Winter 2025-2026 Gear.",
+  "armorSpecialWinter2026HealerText": "Polar Robe",
+  "armorSpecialWinter2026HealerNotes": "Like a natural light show, you will be stunning on your way to completing your Dailies. Increases Constitution by <%= con %>. Limited Edition Winter 2025-2026 Gear.",
+  "armorSpecialWinter2026MageText": "Midwinter Candle Robe",
+  "armorSpecialWinter2026MageNotes": "Glide smoothly along your path like wax on your way to completing your Dailies. Increases Intelligence by <%= int %>. Limited Edition Winter 2025-2026 Gear.",
+
   "armorMystery201402Text": "Messenger Robes",
   "armorMystery201402Notes": "Shimmering and strong, these robes have many pockets to carry letters. Confers no benefit. February 2014 Subscriber Item.",
   "armorMystery201403Text": "Forest Walker Armor",
@@ -2313,6 +2331,15 @@
   "headSpecialFall2025MageText": "Masked Ghost Mask",
   "headSpecialFall2025MageNotes": "Ethereal and glowy, this mask covers your head while you cover all your important tasks. Increases Perception by <%= per %>. Limited Edition Fall 2025 Gear.",
 
+  "headSpecialWinter2026WarriorText": "Rime Reaper Helmet",
+  "headSpecialWinter2026WarriorNotes": "Maintain focus and concentration as you set your sights on greater goals this season. Increases Strength by <%= str %>. Limited Edition 2025-2026 Winter Gear.",
+  "headSpecialWinter2026RogueText": "Ski Mask and Goggles",
+  "headSpecialWinter2026RogueNotes": "Maintain focus and vision as you set your sights on greater goals this season. Increases Perception by <%= per %>. Limited Edition 2025-2026 Winter Gear.",
+  "headSpecialWinter2026HealerText": "Polar Bear Mask",
+  "headSpecialWinter2026HealerNotes": "Maintain focus and clarity as you set your sights on greater goals this season. Increases Intelligence by <%= int %>. Limited Edition 2025-2026 Winter Gear.",
+  "headSpecialWinter2026MageText": "Midwinter Candle Hat",
+  "headSpecialWinter2026MageNotes": "Maintain focus and illumination as you set your sights on greater gooals this season. Increases Perception by <%= per %>. Limited Edition 2025-2026 Winter Gear.",
+
   "headSpecialGaymerxText": "Rainbow Warrior Helm",
   "headSpecialGaymerxNotes": "In celebration of the GaymerX Conference, this special helmet is decorated with a radiant, colorful rainbow pattern! GaymerX is a game convention celebrating LGTBQ and gaming and is open to everyone.",
 
@@ -3036,6 +3063,11 @@
   "shieldSpecialFall2025HealerText": "Kobold Shield",
   "shieldSpecialFall2025HealerNotes": "Buy yourself some extra time to gather supplies by shielding yourself from your chores. Increases Constitution by <%= con %>. Limited Edition Fall 2025 Gear.",
 
+  "shieldSpecialWinter2026WarriorText": "Rime Shield",
+  "shieldSpecialWinter2026WarriorNotes": "Stop obstacles cold with this handy, spikey shield. Increases Constitution by <%= con %>. Limited Edition Winter 2025-2026 Gear.",
+  "shieldSpecialWinter2026HealerText": "Starburst",
+  "shieldSpecialWinter2026HealerNotes": "Stars help with wayfinding, energy, and illumination--all things that help you better conquer a task list. Increases Constitution by <%= con %>. Limited Edition Winter 2025-2026 Gear.",
+
   "shieldMystery201601Text": "Resolution Slayer",
   "shieldMystery201601Notes": "This blade can be used to parry away all distractions. Confers no benefit. January 2016 Subscriber Item.",
   "shieldMystery201701Text": "Time-Freezer Shield",
diff --git a/website/common/locales/en/limited.json b/website/common/locales/en/limited.json
index ac9148878d..5141616640 100644
--- a/website/common/locales/en/limited.json
+++ b/website/common/locales/en/limited.json
@@ -239,6 +239,10 @@
   "fall2025SkeletonRogueSet": "Skeleton Rogue Set",
   "fall2025KoboldHealerSet": "Kobold Healer Set",
   "fall2025MaskedGhostMageSet": "Masked Ghost Mage Set",
+  "winter2026RimeReaperWarriorSet": "Rime Reaper Warrior Set",
+  "winter2026SkiRogueSet": "Ski Rogue Set",
+  "winter2026PolarBearHealerSet": "Polar Bear Healer Set",
+  "winter2026MidwinterCandleMageSet": "Midwinter Candle Mage Set",
   "winterPromoGiftHeader": "GIFT A SUBSCRIPTION, GET ONE FREE!",
   "winterPromoGiftDetails1": "Until January 6th only, when you gift somebody a subscription, you get the same subscription for yourself for free!",
   "winterPromoGiftDetails2": "Please note that if you or your gift recipient already have a recurring subscription, the gifted subscription will only start after that subscription is cancelled or has expired. Thanks so much for your support! <3",
diff --git a/website/common/locales/en/subscriber.json b/website/common/locales/en/subscriber.json
index fe51841c90..d3ac2fe2b6 100644
--- a/website/common/locales/en/subscriber.json
+++ b/website/common/locales/en/subscriber.json
@@ -180,6 +180,9 @@
     "mysterySet202509": "Windswept Wanderer Set",
     "mysterySet202510": "Gliding Ghoul Set",
     "mysterySet202511": "Frost Warrior Set",
+    "mysterySet202512": "Cookie Champion Set",
+    "mysterySet202601": "Winter's Aegis Set",
+    "mysterySet202602": "Sakura Fox Set",
     "mysterySet301404": "Steampunk Standard Set",
     "mysterySet301405": "Steampunk Accessories Set",
     "mysterySet301703": "Peacock Steampunk Set",
diff --git a/website/common/script/content/appearance/backgrounds.js b/website/common/script/content/appearance/backgrounds.js
index ae1c56bf94..99390edf9c 100644
--- a/website/common/script/content/appearance/backgrounds.js
+++ b/website/common/script/content/appearance/backgrounds.js
@@ -674,6 +674,15 @@ const backgrounds = {
   backgrounds112025: {
     castle_keep_with_banners: { },
   },
+  backgrounds122025: {
+    nighttime_street_with_shops: { },
+  },
+  backgrounds012026: {
+    winter_desert_with_saguaros: { },
+  },
+  backgrounds022026: {
+    elegant_palace: { },
+  },
   eventBackgrounds: {
     birthday_bash: {
       price: 0,
diff --git a/website/common/script/content/constants/releaseDates.js b/website/common/script/content/constants/releaseDates.js
index 16891f5257..65543c346b 100644
--- a/website/common/script/content/constants/releaseDates.js
+++ b/website/common/script/content/constants/releaseDates.js
@@ -26,6 +26,9 @@ export const ARMOIRE_RELEASE_DATES = {
   orangeLoungewear: { year: 2025, month: 9 },
   blackHairbow: { year: 2025, month: 10 },
   blacksmith: { year: 2025, month: 11 },
+  musicalInstruments: { year: 2025, month: 12 },
+  loneCowpoke: { year: 2026, month: 1 },
+  prettyInPink: { year: 2026, month: 2 },
 };
 
 export const EGGS_RELEASE_DATES = {
diff --git a/website/common/script/content/constants/seasonalSets.js b/website/common/script/content/constants/seasonalSets.js
index 815038c76c..b26df9ff8e 100644
--- a/website/common/script/content/constants/seasonalSets.js
+++ b/website/common/script/content/constants/seasonalSets.js
@@ -62,6 +62,11 @@ const SEASONAL_SETS = {
     'winter2025AuroraMageSet',
     'winter2025StringLightsHealerSet',
     'winter2025SnowRogueSet',
+
+    'winter2026RimeReaperWarriorSet',
+    'winter2026SkiRogueSet',
+    'winter2026PolarBearHealerSet',
+    'winter2026MidwinterCandleMageSet',
   ],
   spring: [
     // spring 2014
diff --git a/website/common/script/content/gear/sets/armoire.js b/website/common/script/content/gear/sets/armoire.js
index 98951ea3fb..b6c8a13c61 100644
--- a/website/common/script/content/gear/sets/armoire.js
+++ b/website/common/script/content/gear/sets/armoire.js
@@ -557,6 +557,18 @@ const armor = {
     con: 11,
     set: 'blacksmith',
   },
+  loneCowpokeOutfit: {
+    con: 10,
+    set: 'loneCowpoke',
+  },
+};
+
+const back = {
+  harpsichord: {
+    int: 6,
+    per: 6,
+    set: 'musicalInstruments',
+  },
 };
 
 const body = {
@@ -1140,6 +1152,10 @@ const head = {
     per: 11,
     set: 'blacksmith',
   },
+  loneCowpokeHat: {
+    per: 10,
+    set: 'loneCowpoke',
+  },
 };
 
 const shield = {
@@ -1518,6 +1534,18 @@ const shield = {
     per: 8,
     set: 'orangeLoungewear',
   },
+  doubleBass: {
+    con: 6,
+    str: 6,
+    set: 'musicalInstruments',
+  },
+  prettyPinkGiftBox: {
+    con: 2,
+    int: 2,
+    per: 2,
+    str: 2,
+    set: 'prettyInPink',
+  },
 };
 
 const headAccessory = {
@@ -2037,12 +2065,25 @@ const weapon = {
     str: 11,
     set: 'blacksmith',
   },
+  bambooFlute: {
+    con: 6,
+    int: 6,
+    set: 'musicalInstruments',
+  },
+  prettyPinkParasol: {
+    con: 2,
+    int: 2,
+    per: 2,
+    str: 2,
+    set: 'prettyInPink',
+  },
 };
 
 const releaseDay = 7;
 
 forEach({
   armor,
+  back,
   body,
   eyewear,
   head,
@@ -2107,6 +2148,9 @@ export default {
   get armor () {
     return memoizedUpdatReleased({ identifier: 'armor', memoizeConfig: true }, armor);
   },
+  get back () {
+    return memoizedUpdatReleased({ identifier: 'back', memoizeConfig: true }, back);
+  },
   get body () {
     return memoizedUpdatReleased({ identifier: 'body', memoizeConfig: true }, body);
   },
@@ -2129,6 +2173,7 @@ export default {
   get all () {
     const items = [];
     items.push(...Object.values(this.armor));
+    items.push(...Object.values(this.back));
     items.push(...Object.values(this.body));
     items.push(...Object.values(this.eyewear));
     items.push(...Object.values(this.head));
diff --git a/website/common/script/content/gear/sets/mystery.js b/website/common/script/content/gear/sets/mystery.js
index 0ae8c27509..3c9da34dbd 100644
--- a/website/common/script/content/gear/sets/mystery.js
+++ b/website/common/script/content/gear/sets/mystery.js
@@ -71,6 +71,7 @@ const armor = {
   202502: { },
   202504: { },
   202509: { },
+  202512: { },
   301404: { },
   301703: { },
   301704: { },
@@ -119,6 +120,8 @@ const back = {
   202506: { },
   202507: { },
   202510: { },
+  202601: { },
+  202602: { },
 };
 
 const body = {
@@ -249,6 +252,8 @@ const head = {
   202503: { },
   202504: { },
   202507: { },
+  202512: { },
+  202602: { },
   301404: { },
   301405: { },
   301703: { },
@@ -330,6 +335,8 @@ const weapon = {
   202408: { },
   202508: { },
   202511: { },
+  202512: { },
+  202601: { },
   301404: { },
 };
 
diff --git a/website/common/script/content/gear/sets/special/index.js b/website/common/script/content/gear/sets/special/index.js
index c6e02d3023..9228bc426f 100644
--- a/website/common/script/content/gear/sets/special/index.js
+++ b/website/common/script/content/gear/sets/special/index.js
@@ -827,6 +827,18 @@ const armor = {
   fall2025Rogue: {
     set: 'fall2025SkeletonRogueSet',
   },
+  winter2026Warrior: {
+    set: 'winter2026RimeReaperWarriorSet',
+  },
+  winter2026Mage: {
+    set: 'winter2026MidwinterCandleMageSet',
+  },
+  winter2026Healer: {
+    set: 'winter2026PolarBearHealerSet',
+  },
+  winter2026Rogue: {
+    set: 'winter2026SkiRogueSet',
+  },
 };
 
 const armorStats = {
@@ -1964,6 +1976,18 @@ const head = {
   fall2025Rogue: {
     set: 'fall2025SkeletonRogueSet',
   },
+  winter2026Warrior: {
+    set: 'winter2026RimeReaperWarriorSet',
+  },
+  winter2026Mage: {
+    set: 'winter2026MidwinterCandleMageSet',
+  },
+  winter2026Healer: {
+    set: 'winter2026PolarBearHealerSet',
+  },
+  winter2026Rogue: {
+    set: 'winter2026SkiRogueSet',
+  },
 };
 
 const headStats = {
@@ -2694,6 +2718,15 @@ const shield = {
     set: 'fall2025SkeletonRogueSet',
     notes: t('shieldSpecialFall2025RogueNotes', { str: 8 }),
   },
+  winter2026Warrior: {
+    set: 'winter2026RimeReaperWarriorSet',
+  },
+  winter2026Healer: {
+    set: 'winter2026PolarBearHealerSet',
+  },
+  winter2026Rogue: {
+    set: 'winter2026SkiRogueSet',
+  },
 };
 
 const shieldStats = {
@@ -3421,6 +3454,18 @@ const weapon = {
   fall2025Rogue: {
     set: 'fall2025SkeletonRogueSet',
   },
+  winter2026Warrior: {
+    set: 'winter2026RimeReaperWarriorSet',
+  },
+  winter2026Mage: {
+    set: 'winter2026MidwinterCandleMageSet',
+  },
+  winter2026Healer: {
+    set: 'winter2026PolarBearHealerSet',
+  },
+  winter2026Rogue: {
+    set: 'winter2026SkiRogueSet',
+  },
 };
 
 const weaponStats = {