User Settings

Chat style, volume, wardrobe, ignore lists, room-invite preferences, and other per-user settings.

C→S 3950 - ChangeNameCheckUsername

Nitro: CHECK_USERNAME

Source: ChangeNameCheckUsernameEvent, CheckUserNameMessageComposer

Checks whether a desired new username is available before committing the change.

Body: (empty)

C→S 2977 - ConfirmChangeName

Nitro: CHANGE_USERNAME

Source: ConfirmChangeNameEvent, ChangeUserNameMessageComposer

Confirms and commits a username change to the requested new name.

Body: (empty)

C→S 3878 - Username

Nitro: USER_IGNORED

Source: UsernameEvent, GetIgnoredUsersComposer

Requests the list of users the current user has ignored.

Body: (empty)

C→S 2490 - MachineID

Nitro: SECURITY_MACHINE - MachineID→SECURITY_MACHINE. Nitro frames it as a security feature.

If storedMachineId starts with ~ or is not 64 chars, server generates a new ID and sends back S→C 1488 MachineID.

Body:
  storedMachineId:    string   Previously assigned machine ID (length 64) or
                               a client-generated value starting with "~"
  clientFingerprint:  string   Browser fingerprint string
  capabilities:       string   Client capabilities descriptor

C→S 2742 - RequestUserWardrobe

Nitro: GET_WARDROBE

Source: RequestUserWardrobeEvent, GetWardrobeMessageComposer

Requests the user's saved wardrobe outfits for the wardrobe panel.

Body: (empty)

C→S 800 - SaveWardrobe

Nitro: SAVE_WARDROBE_OUTFIT

Source: SaveWardrobeEvent, SaveWardrobeOutfitMessageComposer

Saves an outfit (figure string and gender) to a specific wardrobe slot.

Body:
  slotId: int
  look: string

C→S 2091 - RequestWearingBadges

Nitro: USER_BADGES_CURRENT

Source: RequestWearingBadgesEvent, UserCurrentBadgesComposer

Requests the list of badges currently equipped by a specific user.

Field	Type	Notes
userId	int	Account ID of the user whose equipped badges to retrieve

C→S 644 - UserWearBadge

Nitro: USER_BADGES_CURRENT_UPDATE

Source: UserWearBadgeEvent, SetActivatedBadgesComposer

Updates the user's equipped badge set (which badge slots are filled).

Field	Type	Notes
slot	int	Badge slot number (1-5)
badgeId	string	Badge code to place in the slot (empty = remove)

C→S 1752 - EnableEffect

Nitro: USER_EFFECT_ENABLE

Source: EnableEffectEvent, AvatarEffectSelectedComposer

Enables (equips) an avatar effect by effect ID. Sending 0 disables the current effect.

Field	Type	Notes
effectId	int	Effect ID to enable (0 = disable current effect)

C→S 2959 - ActivateEffect

Nitro: USER_EFFECT_ACTIVATE

Source: ActivateEffectEvent, AvatarEffectActivatedComposer

Activates a specific avatar effect by type ID.

Field	Type	Notes
effectId	int	Effect ID to activate

C→S 1030 - ChangeChatBubble

Nitro: USER_SETTINGS_CHAT_STYLE

Source: ChangeChatBubbleEvent, RoomUnitChatStyleComposer

Sets the user's preferred chat bubble style by ID.

Body: (empty)

C→S 1262 - SavePreferOldChat

Nitro: USER_SETTINGS_OLD_CHAT

Source: SavePreferOldChatEvent, UserSettingsOldChatComposer

Saves the user's preference for the old (bubble) chat style.

Body: (empty)

C→S 1086 - SaveIgnoreRoomInvites

Nitro: USER_SETTINGS_INVITES

Source: SaveIgnoreRoomInvitesEvent, UserSettingsRoomInvitesComposer

Saves the user's preference for blocking room invites from other users.

Body: (empty)

C→S 1461 - SaveBlockCameraFollow

Nitro: USER_SETTINGS_CAMERA

Source: SaveBlockCameraFollowEvent, UserSettingsCameraFollowComposer

Saves the user's preference for blocking automatic camera follow in rooms.

Body: (empty)

C→S 2388 - RequestMeMenuSettings

Nitro: GET_SOUND_SETTINGS

Source: RequestMeMenuSettingsEvent, GetSoundSettingsComposer

Requests the user's Me Menu settings (volumes, chat style, room invite flags).

Body: (empty)

C→S 2313 - UpdateUIFlags

Nitro: CLIENT_TOOLBAR_TOGGLE

Source: UpdateUIFlagsEvent

Sends an updated UI flags bitfield to persist toolbar and interface toggle states.

Body: (empty)

C→S 3159 - SaveWindowSettings

Nitro: NAVIGATOR_SETTINGS_SAVE

Source: SaveWindowSettingsEvent, NavigatorSettingsSaveComposer

Saves the navigator window position, size, and search panel state.

Body:
  x: int
  y: int
  width: int
  height: int
  openSearches: boolean

C→S 1367 - SaveUserVolumes

Nitro: USER_SETTINGS_VOLUME

Source: SaveUserVolumesEvent, UserSettingsSoundComposer

Saves the user's system, furniture, and music volume preferences.

Body:
  system: int
  furni: int

C→S 1740 - SetHomeRoom

Nitro: USER_HOME_ROOM

Source: SetHomeRoomEvent, UpdateHomeRoomMessageComposer

Sets the user's home room to the current room.

Field	Type	Notes
roomId	int	ID of the room to set as home room

C→S 3166 - RequestUserSubscription

Nitro: USER_SUBSCRIPTION / UserSubscriptionComposer

Arcturus: RequestUserClubEvent

Requests the current user's subscription info. Server replies with UserSubscription (954)

Field	Type	Notes
subscriptionType	string	Subscription type string (e.g. "habbo_club")

C→S 2226 - AddSavedSearch

Nitro: NAVIGATOR_SEARCH_SAVE

Source: AddSavedSearchEvent, NavigatorSearchSaveComposer

Saves a navigator search query and filter string for quick access.

Body:
  searchCode: string

C→S 1954 - DeleteSavedSearch

Nitro: NAVIGATOR_DELETE_SAVED_SEARCH

Source: DeleteSavedSearchEvent, NavigatorDeleteSavedSearchComposer

Deletes a previously saved navigator search by ID.

Body: (empty)

C→S 2138 - RequestProfileFriends

Nitro: MESSENGER_RELATIONSHIPS

Source: RequestProfileFriendsEvent, UserRelationshipsComposer

Requests the relationship data (friends, followers) for a user's profile dialog.

Body: (empty)

C→S 516 - FindNewFriends

Nitro: FIND_NEW_FRIENDS

Source: FindNewFriendsEvent, FindNewFriendsMessageComposer

Requests a list of suggested users to add as friends.

Body: (empty)

C→S 1210 - SearchUser

Nitro: HABBO_SEARCH

Source: SearchUserEvent, HabboSearchComposer

Searches for users by username, returning matching profiles and rooms.

Body: (empty)

C→S 2127 - RequestUserCitizinShip

Nitro: TALENT_TRACK_GET_LEVEL

Source: RequestUserCitizinShipEvent, GetTalentTrackLevelMessageComposer

Requests the user's talent track (citizenship) level for a given track type.

Body: (empty)

C→S 2746 - MySanctionStatus

Nitro: GET_CFH_STATUS

Source: MySanctionStatusEvent, GetCfhStatusMessageComposer

Requests the current user's CFH (Call for Help) sanction status.

Body: (empty)

C→S 359 - RequestResolution

Nitro: ACHIEVEMENT_RESOLUTION_OPEN

Source: RequestResolutionEvent, GetResolutionAchievementsMessageComposer

Requests the New Year resolution achievement choices for a specific furniture item.

Body:
  itemId: int

C→S 3500 - HotelViewInventory

Nitro: REQUESTFURNIINVENTORYWHENNOTINROOM Source: RequestInventoryItemsEvent, RequestFurniInventoryWhenNotInRoomComposer

Requests the user's furniture inventory when they are not currently in a room.

Body: (empty)

C→S 1299 - UserNux

Nitro: NEW_USER_EXPERIENCE_SCRIPT_PROCEED

Source: UserNuxEvent, NewUserExperienceScriptProceedComposer

Advances the new user experience (NUX) onboarding script to the next step.

Body: (empty)

C→S 1822 - PickNewUserGift

Nitro: NEW_USER_EXPERIENCE_GET_GIFTS

Source: PickNewUserGiftEvent, NewUserExperienceGetGiftsComposer

Selects a gift item during the new user welcome gift flow.

Field	Type	Notes
totalItems	int	Total number of gift items
keyA	int	Key 1 (gift selection context)
keyB	int	Key 2 (gift selection context)
index	int	Selected gift index

C→S 3457 - UserActivity

Nitro: EVENT_TRACKER

Source: UserActivityEvent

Sends a client-side activity tracking event with a type, value, and action string.

Body:
  type: string
  value: string

C→S 3283 - SavePostItStickyPole

Nitro: FURNITURE_POSTIT_SAVE_STICKY_POLE

Source: SavePostItStickyPoleEvent, AddSpamWallPostItMessageComposer

Saves the text and color of a Post-It sticky note placed on a sticky pole furniture item.

Body:
  itemId: int
  readString: string
  color: string
  commands: string
  readString: string

C→S 295 - Ping

Nitro: CLIENT_LATENCY

Source: PingEvent

Notes: This ID is used by Nitro as a client-side latency ping, distinct from the keep-alive Pong (C→S 2596). Arcturus maps it to GameCenterEvent which handles game center actions.

Client-side keep-alive ping message.

Field	Type	Notes
(empty)	-	No body fields read

C→S 790 - TryPhoneNumber

Nitro: TRY_PHONE_NUMBER Note: No Arcturus handler - Nitro only. Source: TryPhoneNumberMessageComposer

Submits a phone number for SMS verification.

Field	Type	Notes
k	string	Country code or phone prefix string
_arg_2	string	Phone number string

C→S 2721 - VerifyCode

Nitro: VERIFY_CODE Note: No Arcturus handler - Nitro only. Source: VerifyCodeMessageComposer

Submits an SMS verification code to confirm phone number ownership.

Field	Type	Notes
k	string	Verification code entered by the user

C→S 2741 - ResetPhoneNumberState

Nitro: RESET_PHONE_NUMBER_STATE Note: No Arcturus handler - Nitro only. Source: ResetPhoneNumberStateMessageComposer

Resets the phone number verification state on the server, clearing any in-progress verification flow. Nitro-only; Arcturus has no handler.

Body: (empty)

Resets the phone number verification state on the server. No parameters.

C→S 3230 - TrackingPerformanceLog

Nitro: TRACKING_PERFORMANCE_LOG Note: No Arcturus handler - Nitro only. Source: PerformanceLogMessageComposer

Sends a client performance metric log entry. Nitro-only.

Field	Type	Notes
k	int	Client version / session ID
userAgent	string	Browser user-agent string
flashVersion	string	Flash / renderer version string
operatingSystem	string	Operating system string
cpuArchitecture	string	CPU architecture string
isDebugger	bool	Whether a debugger is attached
totalMemory	int	Total available memory (bytes)
_arg_8	int	Unknown int metric
gcCount	int	Garbage-collection count
averageUpdateInterval	int	Average render loop interval (ms)
slowUpdateCount	int	Number of slow update frames

C→S 3847 - TrackingLagWarningReport

Nitro: TRACKING_LAG_WARNING_REPORT Note: No Arcturus handler - Nitro only. Source: LagWarningReportMessageComposer

Reports a client-side lag event for server-side tracking. Nitro-only.

Field	Type	Notes
warningCount	int	Number of lag warnings accumulated this session

C→S 66 - WelcomeGiftChangeEmail

Nitro: WELCOME_GIFT_CHANGE_EMAIL Note: No Arcturus handler - Nitro only. Source: WelcomeGiftChangeEmailComposer

Submits a new email address for welcome gift delivery. Nitro-only; no Arcturus handler.

Field	Type	Notes
newEmail	string	New e-mail address for the welcome gift delivery

C→S 96 - ClientLatencyMeasure

Nitro: CLIENT_LATENCY_MEASURE Note: No Arcturus handler - Nitro only.

Sends a round-trip latency probe to the server. Nitro-only; Arcturus has no handler for this ID.

Body: (empty)

Nitro-only latency probe; Arcturus has no handler for this ID.

C→S 1053 - ClientVariables

Nitro: CLIENT_VARIABLES Note: No Arcturus handler - Nitro only. Source: VersionCheckMessageComposer

Sends client version and asset URL information to the server. Nitro-only.

Field	Type	Notes
clientID	int	Client version identifier
clientURL	string	Client asset base URL
externalVariablesURL	string	External variables URL

C→S 1109 - InterstitialShown

Nitro: INTERSTITIAL_SHOWN Note: No Arcturus handler - Nitro only. Source: InterstitialShownMessageComposer

Notifies the server that the client has dismissed an interstitial advertisement. Nitro-only; Arcturus has no handler.

Notifies the server that the client has dismissed an interstitial advertisement. No parameters.

Body: (empty)

C→S 1160 - PeerUsersClassification

Nitro: PEER_USERS_CLASSIFICATION Note: No Arcturus handler - Nitro only. Source: PeerUsersClassificationMessageComposer

Sends a user classification string for the requesting peer. Nitro-only.

Field	Type	Notes
userClassType	string	Classification string for the requesting peer user

C→S 1379 - SetPhoneNumberVerificationStatus

Nitro: SET_PHONE_NUMBER_VERIFICATION_STATUS Note: No Arcturus handler - Nitro only. Source: SetPhoneNumberVerificationStatusMessageComposer

Sets the phone number verification status. Nitro-only.

Field	Type	Notes
k	int	Verification status code (use SetPhoneNumberVerificationStatusMessageComposer.NO_ISSUE_ID = -1 for no issue)

C→S 2249 - UserProfileByName

Nitro: USER_PROFILE_BY_NAME Note: No Arcturus handler - Nitro only. Source: GetExtendedProfileByNameMessageComposer

Requests a user's extended profile by display name. Nitro-only.

Field	Type	Notes
username	string	Display name of the user whose profile to retrieve

C→S 2285 - UserClassification

Nitro: USER_CLASSIFICATION Note: No Arcturus handler - Nitro only. Source: RoomUsersClassificationMessageComposer

Sends a classification string for room users. Nitro-only.

Field	Type	Notes
userClassType	string	Classification string for the room users

C→S 2445 - Disconnect

Nitro: DISCONNECT Note: No Arcturus handler - Nitro only. Source: DisconnectMessageComposer

Notifies the server that the client is disconnecting gracefully. Nitro-only; Arcturus has no handler.

Body: (empty)

Notifies the server the client is disconnecting gracefully. No parameters.

C→S 2519 - GetInterstitial

Nitro: GET_INTERSTITIAL Note: No Arcturus handler - Nitro only. Source: GetInterstitialMessageComposer

Requests information about purchasing a room advertisement (room promotion slot). No parameters.

Requests the current interstitial advertisement data. No parameters.

Body: (empty)

C→S 2557 - EmailGetStatus

Nitro: EMAIL_GET_STATUS Note: No Arcturus handler - Nitro only. Source: GetEmailStatusComposer

Requests the current email verification status of the account. Nitro-only; Arcturus has no handler.

Requests the current e-mail verification status of the account. No parameters.

Body: (empty)

C→S 3144 - ResetResolutionAchievementMessage

Nitro: RESETRESOLUTIONACHIEVEMENTMESSAGE Note: No Arcturus handler - Nitro only. Source: ResetResolutionAchievementMessageComposer

Resets a New Year resolution achievement's progress. Nitro-only.

Field	Type	Notes
k	int	Achievement ID to reset resolution progress for

C→S 3965 - EmailChange

Nitro: EMAIL_CHANGE Note: No Arcturus handler - Nitro only. Source: ChangeEmailComposer

Requests an email address change for the current account. Nitro-only.

Field	Type	Notes
newEmail	string	New e-mail address to change to

S→C 4000 - DisconnectReason

Nitro: DISCONNECT_REASON Source: ErrorLoginComposer, DisconnectReasonEvent

Delivers a disconnect reason code to the client before the server closes the connection.

Field	Type	Notes
reason	int	Disconnect reason code

S→C 118 - UserChangeName

Nitro: USER_CHANGE_NAME Source: ChangeUserNameResultMessageEvent

Delivers the result of a username change attempt, including suggestions if unavailable.

Field	Type	Notes
resultCode	int	0 = success; non-zero = error code
name	string	The new username (if success) or attempted name
count	int	Number of name suggestions
[count × suggestion]	string	Alternative name suggestion

S→C 2182 - UnitChangeName

Nitro: UNIT_CHANGE_NAME Source: RoomUserNameChangedComposer, UserNameChangeMessageEvent

Notifies the room that a user's display name has changed.

Field	Type	Notes
resultCode	int	0 = success
name	string	New username
count	int	Number of name suggestions
[count × suggestion]	string	Suggested username

S→C 2429 - UserFigure

Nitro: USER_FIGURE Source: UpdateUserLookComposer, FigureUpdateEvent

Notifies the client (and room) that a user's figure and gender have been updated.

Field	Type	Notes
figure	string	Updated avatar figure string
gender	string	Updated gender ("M" or "F")

S→C 3315 - UserOutfits

Nitro: USER_OUTFITS, USER_WARDROBE_PAGE Source: UserWardrobeComposer, UserWardrobePageEvent

Delivers the user's saved wardrobe outfits for the wardrobe panel.

Field	Type	Notes
state	int	Wardrobe UI state
count	int	Number of wardrobe outfit entries
[count × outfit]	OutfitData	Outfit entry (slot index, figure string, gender)

S→C 1087 - UserBadgesCurrent

Nitro: USER_BADGES_CURRENT Source: UserBadgesComposer, UserCurrentBadgesEvent

Delivers a user's currently equipped badges for profile/room display.

Field	Type	Notes
userId	int	Account ID of the user
count	int	Number of equipped badge entries
[count × slotId]	int	Badge slot ID (1-5)
[count × badgeCode]	string	Badge code string

S→C 2493 - UserBadgesAdd

Nitro: USER_BADGES_ADD Source: AddUserBadgeComposer, BadgeReceivedEvent

Notifies the client that a new badge has been added to the user's collection.

Field	Type	Notes
slotId	int	Badge slot ID (0 = not equipped)
badgeCode	string	Badge code

S→C 2867 - EffectsListAdd

Nitro: USER_EFFECT_LIST_ADD

Source: EffectsListAddComposer, AvatarEffectAddedEvent

Adds an avatar effect to the client's effects list, including duration and activation state.

Field	Type	Notes
effectType	int	Effect type ID
unknown	int	Always 0 (unused costume flag)
duration	int	Duration in seconds (MAX_INT if permanent)
isActivated	boolean	Whether effect is permanent (duration ≤ 0)

S→C 1959 - EffectsListEffectEnable

Nitro: USER_EFFECT_ACTIVATE

Source: EffectsListEffectEnableComposer, AvatarEffectActivatedEvent

Notifies the client that an avatar effect has been activated (equipped), including its duration.

Field	Type	Notes
effectId	int	Effect type ID
duration	int	Duration in seconds (0 = permanent)
activated	boolean	Whether the effect is now active

S→C 2228 - EffectsListRemove

Nitro: USER_EFFECT_LIST_REMOVE

Source: EffectsListRemoveComposer, AvatarEffectExpiredEvent

Notifies the client that an avatar effect has expired and should be removed from the effects list.

Field	Type	Notes
effectId	int	Effect type ID to remove from the effects list

S→C 3473 - AvatarEffectSelected

Nitro: AVATAR_EFFECT_SELECTED Source: UnknownAvatarEditorComposer, AvatarEffectSelectedEvent

Notifies the client of the currently selected/equipped avatar effect.

Field	Type	Notes
type	int	Avatar effect type ID that was selected/equipped

S→C 513 - UserSettings

Nitro: USER_SETTINGS / UserSettingsParser Arcturus: MeMenuSettingsComposer

Delivers the user's personal settings (volumes, chat style, room invite flags) for the Me Menu.

Field	Type	Notes
volumeSystem	int	System sound volume (0-100).
volumeItem	int	Item sound volume (0-100).
volumeMusic	int	Music sound volume (0-100).
useOldChat	boolean	Whether the old chat style should be used.
ignoreRoomInvites	boolean	Whether room invites are ignored.
disableCameraFollow	boolean	Whether camera follow is disabled.
uiFlags	int	Bitfield of additional settings
chatTypeId	int	Chat style type ID

S→C 426 - RestoreClient

Nitro: RESTORE_CLIENT Source: CloseWebPageComposer, RestoreClientMessageEvent

(no Arcturus composer)

Instructs the client to restore / reload itself (e.g. after a reconnect).

Instructs the client to restore or reload itself, typically sent after a reconnect or session recovery. Nitro-only; no Arcturus composer.

Body: (empty)

S→C 909 - CustomUserNotification

Nitro: CUSTOM_USER_NOTIFICATION Source: CustomNotificationComposer, CustomUserNotificationMessageEvent

Delivers a custom notification code that the client maps to a localised message.

Field	Type	Notes
code	int	Notification code (client maps this to a localised message)

S→C 3284 - InfoFeedEnable

Nitro: INFO_FEED_ENABLE Source: EnableNotificationsComposer, InfoFeedEnableMessageEvent

Notifies the client whether the hotel info feed is enabled.

Field	Type	Notes
enabled	boolean	Whether the info feed is enabled

S→C 2023 - InClientLink

Nitro: IN_CLIENT_LINK Source: NuxAlertComposer, InClientLinkEvent

Delivers an in-client navigation link that the client follows (e.g. opens the catalog at a specific page).

Field	Type	Notes
link	string	In-client navigation link (e.g. "catalog/open")

S→C 3898 - UserProfile

Nitro: USER_PROFILE Source: UserProfileComposer, UserProfileEvent

Delivers a user's public profile (look, motto, achievements, groups, online status) for the profile screen. Same structure as UserProfileParser.

Field	Type	Notes
userId	int	Account ID
username	string	Username
figure	string	Figure string
motto	string	Personal motto
registration	string	Registration date string
achievementScore	int	Total achievement score
friendsCount	int	Number of friends
isMyFriend	boolean	Whether the requesting user is friends with this user
requestSent	boolean	Whether a friend request is pending
isOnline	boolean	Whether the user is currently online
groupCount	int	Number of groups
[groupCount × group]	HabboGroupEntryData	Group entry
secondsSinceLastVisit	int	Seconds since last login
openProfileWindow	boolean	Whether the profile window should open

S→C 411 - UserPermissions

Nitro: USER_PERMISSIONS Source: UserPermissionsComposer, UserPermissionsEvent

Delivers the user's Club level and staff permission level for the session.

Field	Type	Notes
clubLevel	int	0 = no club, 1 = basic HC, 2 = VIP
securityLevel	int	Permission level (staff rank indicator)
isAmbassador	boolean	Whether the user is an ambassador

S→C 2586 - UserCapabilities

Nitro: USER_PERKS / PerkAllowancesMessageParser Arcturus: UserPerksComposer

(no Arcturus composer)

Delivers the list of actions the current user is allowed to perform.

Field	Type	Notes
count	int	Number of capability entries.
[count × code]	string	Capability code.
[count × disabledReason]	string	Reason for the disabled capability, as a i18n string.
[count × enabled]	boolean	Whether this capability is currently enabled.

S→C 2875 - UserHomeRoom

Nitro: USER_HOME_ROOM Source: UserHomeRoomComposer, NavigatorHomeRoomEvent

Delivers the user's configured home room ID and the room to navigate to.

Field	Type	Notes
homeRoomId	int	The user's configured home room ID
roomIdToEnter	int	Room ID to navigate into (may differ from home room)

S→C 2524 - UserFavoriteRoomUpdate

Nitro: USER_FAVORITE_ROOM Source: FavoriteRoomChangedComposer, FavouriteChangedEvent

(no Arcturus composer)

Notifies the client of a change to the user's favourite rooms list (add or remove).

Field	Type	Notes
roomId	int	Room ID
isAdded	boolean	Whether the room was added (true) or removed (false) to favourites

S→C 151 - UserFavoriteRooms

Nitro: USER_FAVORITE_ROOM_COUNT / FavouritesMessageParser

Arcturus: FavoriteRoomsCountComposer

Delivers the user's favourite rooms list.

Field	Type	Notes
limit	int	Maximum number of favourite rooms allowed
count	int	Number of favourite room entries
[count × roomId]	int	Room ID

S→C 126 - UserIgnored

Nitro: USER_IGNORED Source: IgnoredUsersComposer, IgnoredUsersEvent

Sent in response to C→S 1117 (USER_IGNORE). Contains the full list of currently ignored users.

Delivers the user's full ignore list after an ignore action.

Field	Type	Notes
count	int	Number of ignored usernames
[count × username]	string	Ignored username

S→C 207 - UserIgnoredResult

Nitro: USER_IGNORED_RESULT Source: RoomUserIgnoredComposer, IgnoreResultEvent

Delivers the result of an ignore or un-ignore action.

Field	Type	Notes
result	int	0 = success; 1 = already ignored; 2 = not found; 3 = cannot ignore staff
name	string	Username that was (un)ignored

S→C 1243 - AccountSafetyLockStatusChange

Nitro: ACCOUNT_SAFETY_LOCK_STATUS_CHANGE Source: UnknownStatusComposer, AccountSafetyLockStatusChangeMessageEvent

Notifies the client of a change to the account's safety lock status.

Field	Type	Notes
status	int	0=locked, 1=unlocked

S→C 3679 - UserSanctionStatus

Nitro: USER_SANCTION_STATUS

Delivers the current active sanction details (type, duration, trade lock, probation) for the user.

Field	Type	Notes
isSanctionNew	boolean	Whether this is a new sanction
isSanctionActive	boolean	Whether a sanction is active
sanctionName	string	Sanction type name
sanctionLengthHours	int	Duration in hours
_unknown	int	Unused
sanctionReason	string	Reason string
sanctionCreationTime	string	Creation date string
probationHoursLeft	int	Probation hours remaining
nextSanctionName	string	Next escalation name
nextSanctionLengthHours	int	Next escalation duration
_unknown2	int	Unused
hasCustomMute	boolean	Whether custom mute is applied
tradeLockExpiryTime	string	Trade lock expiry (optional)

S→C 1203 - TalentTrackLevel

Nitro: TALENT_TRACK_LEVEL Source: UserCitizinShipComposer, TalentTrackLevelMessageEvent

(no Arcturus composer)

Delivers the user's current level in a talent track. Nitro-only.

Field	Type	Notes
talentTrackName	string	Talent track name (e.g. "citizenship")
level	int	Current level
maxLevel	int	Maximum level for this track

S→C 3738 - UserTrustedLevel

Nitro: NOOBNESS_LEVEL, NoobnessLevelMessageParser

Arcturus: NewUserIdentityComposer

Delivers the user's trusted level.

Field	Type	Notes
trustedLevel	int	Trusted level (0 = old identity, 1 = new identity, 2 = visitor)

S→C 2033 - AvailabilityStatus

Nitro: AVAILABILITY_STATUS Source: AvailabilityStatusMessageComposer, AvailabilityStatusMessageEvent

Delivers the hotel open/closed and shutdown status for the connection phase.

Field	Type	Notes
isOpen	boolean	Whether the hotel is open
isShuttingDown	boolean	Whether the hotel is shutting down
isAuthenticHabbo	boolean	Always true for authenticated users

S→C 1488 - SecurityMachine

Nitro: SECURITY_MACHINE Source: MachineIDComposer

Delivers the stored machine ID assigned to this client after handshake.

Sent by Arcturus in response to C→S 2490 (SECURITY_MACHINE) when it assigns or updates the stored machine ID.

Field	Type	Notes
machineId	string	The stored machine ID assigned to this client

S→C 1450 - UserClothing

Nitro: USER_CLOTHING, FigureSetIdsMessageParser

Arcturus: UserClothesComposer

Delivers the user's clothing for the avatar editor.

Field	Type	Notes
count	int	Number of figure set IDs
[count × figureSetId]	int	Clothing figure set ID
itemCount	int	Number of bound item names
[itemCount × name]	string	Item type name bound to a figure set

S→C 10 - ClientLatency

Nitro: CLIENT_LATENCY Note: No Arcturus composer - Nitro only. Source: PongComposer

(no Arcturus composer)

Periodic server keepalive that triggers a client-side latency measurement. Client replies with the elapsed time via C→S 295 (CLIENT_LATENCY).

Body: (empty)

S→C 91 - PhoneTryVerificationCodeResult

Nitro: PHONE_TRY_VERIFICATION_CODE_RESULT Note: No Arcturus composer - Nitro only. Source: VerifyMobilePhoneDoneComposer, TryVerificationCodeResultMessageEvent

(no Arcturus composer)

Delivers the result of a phone verification code submission. Nitro-only.

Field	Type	Notes
resultCode	int	Result code; 0 = success
millisToAllowProcessReset	int	Milliseconds before another verification attempt is allowed

S→C 563 - CheckUserName

Nitro: CHECK_USER_NAME Note: No Arcturus composer - Nitro only. Source: CheckUserNameResultMessageEvent

Delivers the availability result for a requested username, with suggestions. Nitro-only.

Field	Type	Notes
resultCode	int	0 = available; non-zero = taken or invalid
name	string	The username being checked
count	int	Number of alternative name suggestions
[count × suggestion]	string	Suggested alternative name

S→C 600 - AvailabilityTime

Nitro: AVAILABILITY_TIME Note: No Arcturus composer - Nitro only. Source: AvailabilityTimeMessageEvent

(no Arcturus composer)

Delivers whether the hotel is currently open and minutes until the next state change. Nitro-only.

Field	Type	Notes
isOpen	int	> 0 = hotel is open
minutesUntilChange	int	Minutes until next open/close transition

S→C 612 - EmailStatus

Nitro: EMAIL_STATUS Note: No Arcturus composer - Nitro only. Source: TalentTrackEmailVerifiedComposer, EmailStatusResultEvent

(no Arcturus composer)

Delivers the account's email address and verification/change-allowed status. Nitro-only.

Field	Type	Notes
email	string	Account email address
isVerified	boolean	Whether the email is verified
allowChange	boolean	Whether the user is allowed to change their email

S→C 638 - TalentTrackLevelUp

Nitro: TALENT_TRACK_LEVEL_UP Note: No Arcturus composer - Nitro only. Source: TalentLevelUpdateComposer, TalentLevelUpEvent

(no Arcturus composer)

Notifies the client that the user levelled up in a talent track, with perk and product rewards. Nitro-only.

Field	Type	Notes
talentTrackName	string	Talent track name (e.g. "citizenship")
level	int	New level achieved
rewardPerksCount	int	Number of perk rewards
[rewardPerksCount × perk]	TalentTrackRewardPerk	Perk reward entry
rewardProductsCount	int	Number of product rewards
[rewardProductsCount × productName]	string	Product name
[rewardProductsCount × vipDays]	int	VIP days granted for this product

S→C 800 - PhoneTryNumberResult

Nitro: PHONE_TRY_NUMBER_RESULT Note: No Arcturus composer - Nitro only. Source: VerifyMobilePhoneCodeWindowComposer, TryPhoneNumberResultMessageEvent

(no Arcturus composer)

Delivers the result of a phone number submission (SMS sent or error). Nitro-only.

Field	Type	Notes
resultCode	int	Result code (0 = success)
millisToAllowProcessReset	int	Milliseconds before another attempt is allowed

S→C 966 - UserClassification

Nitro: USER_CLASSIFICATION Note: No Arcturus composer - Nitro only. Source: UserClassificationComposer, UserClassificationMessageEvent

(no Arcturus composer)

Field	Type	Notes
count	int	Number of user classification entries
[count × userId]	int	Account ID
[count × username]	string	Username
[count × classification]	string	Classification string (e.g. "staff", "ambassador")

S→C 1787 - NotificationElementPointer

Nitro: NOTIFICATION_ELEMENT_POINTER Note: No Arcturus composer - Nitro only. Source: UnknownHintComposer, ElementPointerMessageEvent

(no Arcturus composer)

Tells the client to highlight or point at a specific UI element key. Nitro-only.

Field	Type	Notes
key	string	UI element key to highlight/point at

S→C 1808 - InterstitialMessage

Nitro: INTERSTITIAL_MESSAGE Note: No Arcturus composer - Nitro only. Source: UnknownAdManagerComposer, InterstitialMessageEvent

(no Arcturus composer)

Tells the client whether an interstitial ad can be shown. Nitro-only.

Field	Type	Notes
canShowInterstitial	boolean	Whether the interstitial ad can be shown

S→C 1815 - ChangeEmailResult

Nitro: CHANGE_EMAIL_RESULT Note: No Arcturus composer - Nitro only. Source: TalentTrackEmailFailedComposer, ChangeEmailResultEvent

(no Arcturus composer)

Delivers the result of an email change request. Nitro-only.

Field	Type	Notes
result	int	0 = success; other = error code

S→C 2890 - PhoneCollectionState

Nitro: PHONE_COLLECTION_STATE Note: No Arcturus composer - Nitro only. Source: VerifyMobilePhoneWindowComposer, PhoneCollectionStateMessageEvent

Delivers the user's phone number collection/verification state. Nitro-only.

Field	Type	Notes
phoneStatusCode	int	Phone verification status code
collectionStatusCode	int	Collection campaign status code
millisToAllowProcessReset	int	Milliseconds before another verification attempt

S→C 3639 - NewUserExperienceNotComplete

Nitro: NEW_USER_EXPERIENCE_NOT_COMPLETE Note: No Arcturus composer - Nitro only. Source: VerifyMobileNumberComposer, NewUserExperienceNotCompleteEvent

(no Arcturus composer)

Signals that the user has not yet completed the new user experience flow. Sent after login to new accounts; body is empty.

Body: (empty)