
Updates at a glance
Seasons 19 to 21 kept the rhythm of earlier years: each summer and winter part opened with a new or renewed class and a Speed Server, followed by two more updates with hunting grounds, gear and a higher level cap. The table follows Webzen's Global press releases.
| Update | Date | Main additions |
|---|---|---|
| Season 19-1, 1st | 2024-07 | Grow Lancer renewal, Speed Server |
| Season 19-1, 2nd | 2024-08 | Tormenta Island, Apocalypse weapons, Ancient Lightning armors |
| Season 19-1, 3rd | 2024-09 | 5th Class Advancement, Lv.5 wings, Giant Mount |
| Season 19-2, 1st | 2025-01 | Dark Lord renewal, Speed Server |
| Season 19-2, 2nd | 2025-02 | Distorted Karutan, Foliage Earring |
| Season 19-2, 3rd | 2025-03 | Guardian Leviathan, Ancient Lightning weapons, Artifact rank upgrade |
| Season 20-1, 1st | 2025-07 | New class Alchemist, Speed Server |
| Season 20-1, 2nd | 2025-08 | Kardamahal Underground Temple, Alchemist wings |
| Season 20-1, 3rd | 2025-09 | Legendary gear: Temple Guard set |
| Season 20-2, 1st | 2026-02 | Rune Mage renewal, four Speed Servers |
| Season 20-2, 2nd | 2026-02 | Swamp of Destruction, Earring of Frost, Blessing of Eunice |
| Season 20-2, 3rd | 2026-03 | Guardian Tauros, death EXP recovery |
| Season 21-1, 1st | 2026-07 | New class Crusader, Speed Server Reborn |
| Season 21-1, 2nd | 2026-08 | Sanctuary of Aquilas, Ancestral Imperial gear, server Idavoll |
| Season 21-1, 3rd | 2026-09 | Sanctuary of Aquilas Elite Zone |
The previous period is covered in Season 16 to Season 18.
Class renewals and new classes
- Grow Lancer (July 2024): her first renewal since her 2015 release. New skills Oversting, which calls one Grow Lancer per target to stab each one, and Wild Breche, a lance swing that hits everything around her, plus exclusive Mastery Lancer Shields from Bloodangel to Brilliant.
- Dark Lord (January 2025): new Ruud skills Spirit Blast (area damage) and Divine Force (raises the stats of party members), exclusive Mastery Lord Shields, and upgraded pets Divine Spirit and Divine Horse. Command was later added to his Skill Enhance Tree.
- Alchemist (July 2025): a new magic class that can be created from the start and begins its journey in Elbeland. It fights with a Wand and an Elixir, mixes damage with support, and can summon extra field monsters to speed up hunting for the whole party. Its skills are Angel Homunculus, Ignition Bomber, Countless Weapon and Confusion Stone.
- Rune Mage (February 2026): a full renewal of the rune-wielding Half Elf with an exclusive Mastery Shield, new explosive rune skills that hit an area, balance changes and a new Wizardry Power stat.
- Crusader (July 2026): a hybrid class with a hammer and a shield that uses the power of light both to deal damage and to strengthen allies, built for solo and group play.

Each of these launches came with a Speed Server. From 2024 on a character earned 100 Ruud per level from 401 to 800 (40,000 in total), each account got one free transfer to an original server, and reaching level 800 before moving unlocked a bonus that included +13 [Bound] 3rd wings and 350,000 Ruud. In Season 21-1 the Speed Server was rebuilt as 'Reborn': its cap rose from 800 to 900 and Deep Dungeon became available there.

5th class and Lv.5 wings
The last update of Season 19-1 (September 2024) brought the biggest step of this period. After level 1,200 a character can finish three quests from the NPC Eunice to complete the 5th Class Advancement. This unlocks the Extra DMG types Nuke, Bolt and Wide, which work once the matching Extra Ability Card sits in an Ability Upgrade Core.
- Ability Crystals drop from monsters in Burning Kethotum and harder maps, and are crafted into Skill, Option and Elite Ability Cards.
- Another quest from Eunice after the three advancement quests gives the Giant Mount, an armored two-legged walking robot that adds +20 movement speed.
- Lv.5 Wings (capes), the first new wing level since 2018, are crafted from a Lv.5 Wings Divine Object, an Ultimate Magic Crystal and Zen. A Wing Core adds visual effects and extra bonuses.
- An Ultimate Magic Crystal is crafted from Mastery set items at +9 or higher with 16 or more options, and each craft gives 3 crystals.
Gear and Guardians
| Gear | Added | How to get it |
|---|---|---|
| Apocalypse weapons (9th Mastery) | Season 19-1 | Brilliant weapon + Mastery combination material, 100% success; level 1,400 to equip |
| Ancient Lightning armors (10th Mastery) | Season 19-1 | Apocalypse armor + Mastery combination material, 100% success; level 1,500 to equip |
| Ancient Lightning weapons (10th Mastery) | Season 19-2 | Apocalypse weapon + Mastery combination material, 100% success |
| Foliage Earring (7th Mastery) | Season 19-2 | Unity Earring + Foliage Casting Mold; left at level 950, right at 1,000 |
| Earring of Frost (8th Mastery) | Season 20-2 | Not detailed in the sources |
| Temple Guard set (1st Legendary) | Season 20-1 | Crafted; sits above 10th Mastery gear |
| Ancestral Imperial (2nd Legendary) | Season 21-1 | Upgrade a Temple Guard set; uses Imperial Upgrade Stones from Sanctuary of Aquilas |
Read more in Mastery Items and Legendary Equipment. Two Guardians also arrived: Leviathan, the 6th, a sea dragon made by combining the 5th Guardian Ullr with a Leviathan Seal and usable from level 1,300; and Tauros, the 7th, crafted with the Seal of Tauros. Artifacts gained a rank upgrade that uses two Artifacts of the same type, option and level.
New hunting grounds
| Map | Added in | Level | Notes |
|---|---|---|---|
| Tormenta Island | Season 19-1 | 1,280 | Entrance in Elbeland; Storm Guard, Storm Reaper, Storm Fiend |
| Distorted Karutan | Season 19-2 | 1,450 | Entrance in Karutan 2; twisted elemental monsters |
| Kardamahal Underground Temple | Season 20-1 | 1,500 | Under Karutan's southern caves; Devil Sword, Devil Sorcery |
| Swamp of Destruction | Season 20-2 | - | High-level zone once linked to the Swamp of Peace |
| Sanctuary of Aquilas | Season 21-1 | 1,600 | Reached from the Kanturu Ruins; Elite Zone from September 2026 |
Level cap and other changes
| Update | Max level | Season Muun (reward level) |
|---|---|---|
| Season 19-1 | 1,600 | Grow Lancer (1,550) |
| Season 19-2 | 1,650 | Dark Lord (1,600) |
| Season 20-1 | 1,700 | Dark Lord (1,600) and Alchemist (1,650) |
| Season 21-1 | 1,750 | Alchemist (1,650) and Crusader (1,700) |
- See Level Cap & Season Rewards for how the season Muun is claimed. From Season 19-1, a 4th class character above level 1,600 no longer earns Skill Enhance Tree points.
- Season 19-2 split Chaos Castle, Blood Castle, Devil Square and Doppelganger into finer level ranges with rebalanced monsters, and gave all bosses the same spawn times.
- Season 20-2 adjusted the EXP curve for faster progress and added Blessing of Eunice, a buff that gives 5th class characters +50% hunting EXP. Death penalty EXP can be recovered for free once per day.
- Season 21-1 opened the new server Idavoll, which players can also reach with a free transfer from the Speed Server.
Sources
- Webzen: MU Online releases Grow Lancer Class Renewal
- Webzen: Tormenta Island - New Hunting Ground emerges in MU Online
- Webzen: MU Online adds 5th Level Wings and 5th Class Advancement in the last installment
- Webzen: MU Online Kicks Off the Year with Major Update: Dark Lord Renewal and events
- Webzen: MU Online Introduces New Hunting Ground - Distorted Karutan
- Webzen: MU Online Introduces Leviathan and Lightning Weapons, along with MU Lite
- Webzen: MU Online introduces new class Alchemist along with Speed Server Events
- Webzen: MU Online Unveils Kardamahal Underground Temple, Expands Level Cap
- Webzen: MU Online Unveils Legendary Gear in Latest Update
- Webzen: MU Online Unleashes Rune Mage Renewal and High-Speed Progression with New Speed Servers
- Webzen: MU Online Releases Season 20-2 Second Update with the Swamp of Destruction
- Webzen: MU Online Welcomes New Guardian Tauros with Reward-Packed Update
- Webzen: MU Online Introduces New Class 'Crusader' and Revamps Speed Server
- Webzen: WEBZEN Updates MU Online with Sanctuary of Aquilas, Ancestral Imperial Gear
- Webzen: MU Online Unveils Sanctuary of Aquilas Elite Zone and Season 21-1 Part 3
- MU Online official guide: Season 19-1
- MU Online official guide: Season 19-2
- MU Online official guide: Season 20-1
- MU Online official guide: Season 20-2
- MU Online official guide: Season 21-1
- MU Online official guide: Alchemist
- MU Online official guide: Crusader
Game pictures: © Webzen Inc. · muonline.webzen.com



