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CHANGELOGS

October 2026

Update
09/10/2026 | 17:18

Maintenance and updates

This update requires you to update the game.

• [General] Added a new party inactivity control system
• [General] Fixed a bug that allowed the Teleport skill to be used during the Reflect effect
• [General] The character reset command can now be used from any map, but always from a safe zone
• [General] HP +13 potions dropped by events/bosses will now have 255 units
• [General] Fixed bugs in the Guild War command
• [General] Boss ranking: now deducts and reports damage lost due to inactivity, distance, or disconnection, and displays detailed player statistics
• [PC] The party member buff list can now be viewed
• [PC] Added an option to test the game at 30 and 60 FPS
• [PC] Fixed a bug that caused macros to Unbind when changing subservers
• [PC] Corrections and improvements were made to the Helper System
• [PC] A new event schedule information system was added (F7 key)
• [Android/iOS] The options menu was redesigned
• [Android/iOS] The target attack (PvP) interface was redesigned
• [Android/iOS] Switching interfaces from the options menu is now done in real time (no need to relog)
• [Android/iOS] The DL's cape is now correctly displayed on the character's back
• [Android/iOS] Changes were made to improve Joystick functionality
• [Android/iOS] Changes were made to server connection management to reduce random disconnections
• [Android/iOS] The Clan emblem added to character nicknames
• [Android/iOS] Fixed a collision bug between characters, mobs, and NPCs
• [iOS] Fixed a bug that prevented data entry in personal shops, chests, etc.

September 2026

Update
21/09/2026 | 11:57

Updates and maintenance

This update does not require you to update the game.

• Adjustments were made and new options were added to the PC client settings menu. • The chat history/window in the PC client was redesigned. • A new system for blocking/muting players was added to the PC client (F6 key). • A bug with the information window for who killed you and the trade command was fixed. • The color of the Talisman of Chaos name was changed to make it more distinguishable. • When opening the chat bar in the PC client and right-clicking on a character's nickname, you can now send them a whisper. • Party self-defense messages were modified: they will now only be sent to the two characters involved. • A global time-of-death message was added for Ice Tantalos and Flame Tantalos.

Update
15/09/2026 | 15:12

PC client update

This update does not require you to update the game.

• New quick stat point allocation on the PC client: You can now hold down the "+" button next to your stats for 1.5 seconds to directly enter the number of points you want to add. • A new option has been added to the Helper window to automatically accept parties on the PC client (coming soon to Mobile as well). • The FPS drop issue that arose in recent updates has been fixed. • A new Fog option has been added for the 3D camera on the PC client. • Weapons can now be equipped in the second slot using a right-click on the PC client. • The PC client now temporarily retains your username and password after logging in. When returning to server selection, the fields will be automatically filled. • You can now change the PC client resolution directly from the options menu, in real time and without leaving the game. • Fixed the game's darkness at night on the PC client. • Improved scrolling in the chat history window (F4 key) on the PC client. • Added a chat filter panel to the PC client (F5 key).

Update
01/09/2026 | 18:00

Maintenance and updates

This update requires you to update the game.

• Fixed a double-drop bug in Lord of Kundun
• Fixed a bug with the maximum number of personal shops open per subserver (it wasn't counting off-stores)
• It will no longer be necessary to remove your wings to open a personal shop
• The "AntiFreeze" option settings are now saved correctly on the PC client
• Added a button to reset the character in the attributes window on the PC client (it already exists on Mobile)
• Enabled the sky for the 3D Camera on the PC client
• Fixed a bug that caused the character to "bounce/skip" in some areas of the Devias map
• Updated the colors of the Artisan NPC
• Added the in-game VIP purchase system to Mobile (it already exists on PC)
• Enabled the combination to create the 5 new colored Dinorants (White, Black, Green, Lilac and Violet)

July 2026

Update
30/07/2026 | 21:00

Updates and maintenance

This update requires you to update the game.

• Fixed a disconnection that could occur when unequipping the Dark Horse from the Dark Lord. • Fixed a bug that caused the client to close unexpectedly. • Fixed the display of magic damage in character attributes. • Fixed a bug in the ranking of parties against bosses. • Fixed the effect of the Ceto Vine set, which was not correctly granting the attack and defense buff. • Fixed a bug that sometimes caused bosses not to drop their reward. • Changed the color of the Alliance chat to better differentiate it from the Whisper chat. • Added a potion vendor NPC in Lost Tower 1. • Added a new boss: Flame Tantalo. It will appear in the background of Aida (at coordinates 130-090) every Thursday at 2:30 PM and 8:30 PM (GMT-3)
• Fixed a bug related to the Elf's auto-buff
• Ancient Potion crafting using rings has been enabled in the PC version
• From now on, the winner of Chaos Castle 5 and 6 will be the last character standing
• Fixed a bug with the Ice Storm and Decay skills during duels
• Various aspects of game security have been reinforced
• New controls for the 3D Camera have been enabled in the PC version
• From now on, bosses will have skills
• The Wars system is now working in the Mobile version
• The Ice Tantalo and Boss Queen will now drop 3 rewards

Update
23/07/2026 | 12:56

Adjustments and modifications

This update does not require you to update the game.

• Fixed the 6:45 AM White Wizard invasion
• Increased Lord of Kundun's HP and damage
• Reduced Lord of Kundun's respawn time to 11 hours (previously 12 hours)
• Increased Sorcerer Chief's respawn time to 3 hours (previously 2 hours)
• Added a chest in LostTower 1

June 2026

Update
16/06/2026 | 11:05

Update and maintenance

This update does not require you to update the game.

• The FIFA World Cup Event 2026 has begun (more info at https://99b.argmu.com/collectors)
• New colors have been enabled for the Artisan NPC in celebration of the 2026 World Cup
• A bug with the Blood Castle event door has been fixed (further testing with a high volume of players is needed)
• When a character reaches the maximum level in Arena, they will automatically leave the party if they are in one (this is done to free up the slot)
• The global message bug when encountering the Dalibor NPC has been fixed

May 2026

Update
22/05/2026 | 11:00

Maintenance and updating

This update requires you to update the game.

[General]
• 150 additional slots have been enabled across subservers 1, 2, and 3
• Monster movement and attack AI has been improved
• A notification now appears when someone kills a Golden Goblin
• The "Arena" map is now non-PvP with the following characteristics: for characters between levels 85 and 399, with a maximum of 150 resets. Upon reaching level 400, the character will be automatically teleported back to their starting map. This is done to free up spots in the Arena and prevent excessive farming.
• Changes have been made to the spots on the "Arena" map
• MU Coins have been renamed "ACoins" (only the name has changed; the value and functionality remain the same)
• Blood Castle 8: will now have the same drop rate as BC7, and will also drop Seals. Also, remember that an Ice Tantalum appears within BC8.
• Hell Maine Hero: will now drop 3 prizes instead of 2
• Ice Tantalo: ring drop removed (earrings remain the same)
• Disabled a method that allowed revealing the nicknames of characters inside Chaos Castle
• The drop rate of Jewel of Chaos has been reduced so that the jewel can begin to recover its value

[Mobile]
• Fixed the "screen cutoff" bug affecting some devices (Android)
• Improved the alternate interface controls
• Improved the map list in the teleportation window (Android)
• Improved the settings menu

March 2026

Update
05/03/2026 | 16:30

Maintenance and update

This update requires you to update the game.

[General]
• Fixed a bug with the game's language system
• Reduced the drop rate of farming items on subserver 4 (Non-PVP) by 50%
• Limited the maximum number of open Personal Shops to 50 on subservers 1, 2, and 3

[Mobile]
• Added Android 15 support (Android)
• Disabled autotargeting within Blood Castle, Devil Square, and Chaos Castle (Android/iOS)
• Fixed the whisper (iOS)
• Fixed the input when leaving a clan (iOS)
• Fixed the character creation bug in version S3 (iOS)
• Fixed the bug when setting item prices in the Personal Shop (iOS)