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 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

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

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

C→S 644 - UserWearBadge

Nitro: USER_BADGES_CURRENT_UPDATE

Source: UserWearBadgeEvent, SetActivatedBadgesComposer

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

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

C→S 1752 - EnableEffect

Nitro: USER_EFFECT_ENABLE

Source: EnableEffectEvent, AvatarEffectSelectedComposer

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

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

C→S 2959 - ActivateEffect

Nitro: USER_EFFECT_ACTIVATE

Source: ActivateEffectEvent, AvatarEffectActivatedComposer

Field	Type	Notes
effectId	int	Effect ID to activate

Activates a specific avatar effect by type ID.

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

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

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

C→S 3166 - RequestUserClub

Nitro: USER_SUBSCRIPTION

Source: RequestUserClubEvent, UserSubscriptionComposer

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

Notes: Response is UserClub / USER_CLUB (S→C 954, documented in §4).

Requests the current user's Habbo Club subscription info.

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

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

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

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

Field	Type	Notes
(empty)	-	No body fields read

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.

C→S 790 - TryPhoneNumber

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

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

Submits a phone number for SMS verification.

C→S 2721 - VerifyCode

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

Field	Type	Notes
k	string	Verification code entered by the user

Submits an SMS verification code to confirm phone number ownership.

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

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

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

C→S 3847 - TrackingLagWarningReport

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

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

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

C→S 66 - WelcomeGiftChangeEmail

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

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

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

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

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

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

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.

Body: (empty)

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

C→S 1160 - PeerUsersClassification

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

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

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

C→S 1379 - SetPhoneNumberVerificationStatus

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

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

Sets the phone number verification status. Nitro-only.

C→S 2249 - UserProfileByName

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

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

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

C→S 2285 - UserClassification

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

Field	Type	Notes
userClassType	string	Classification string for the room users

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

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.

Body: (empty)

Requests the current interstitial advertisement data. No parameters.

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.

Body: (empty)

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

C→S 3144 - ResetResolutionAchievementMessage

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

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

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

C→S 3965 - EmailChange

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

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

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

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

S→C 118 - UserChangeName

Nitro: USER_CHANGE_NAME Source: ChangeUserNameResultMessageEvent

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

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

S→C 2182 - UnitChangeName

Nitro: UNIT_CHANGE_NAME Source: RoomUserNameChangedComposer, UserNameChangeMessageEvent

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

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

S→C 2429 - UserFigure

Nitro: USER_FIGURE Source: UpdateUserLookComposer, FigureUpdateEvent

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

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

S→C 3315 - UserOutfits

Nitro: USER_OUTFITS, USER_WARDROBE_PAGE Source: UserWardrobeComposer, UserWardrobePageEvent

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)

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

S→C 1087 - UserBadgesCurrent

Nitro: USER_BADGES_CURRENT Source: UserBadgesComposer, UserCurrentBadgesEvent

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

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

S→C 2493 - UserBadgesAdd

Nitro: USER_BADGES_ADD Source: AddUserBadgeComposer, BadgeReceivedEvent

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

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

S→C 2867 - EffectsListAdd

Nitro: USER_EFFECT_LIST_ADD

Source: EffectsListAddComposer, AvatarEffectAddedEvent

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)

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

S→C 1959 - EffectsListEffectEnable

Nitro: USER_EFFECT_ACTIVATE

Source: EffectsListEffectEnableComposer, AvatarEffectActivatedEvent

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

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

S→C 2228 - EffectsListRemove

Nitro: USER_EFFECT_LIST_REMOVE

Source: EffectsListRemoveComposer, AvatarEffectExpiredEvent

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

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

S→C 3473 - AvatarEffectSelected

Nitro: AVATAR_EFFECT_SELECTED Source: UnknownAvatarEditorComposer, AvatarEffectSelectedEvent

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

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

S→C 513 - UserSettings

Nitro: USER_SETTINGS Source: MeMenuSettingsComposer, UserSettingsEvent

Field	Type	Notes
volumeSystem	int	System sound volume (0–100)
volumeFurni	int	Furniture sound volume (0–100)
volumeTrax	int	Music/trax volume (0–100)
oldChat	boolean	Whether old (bubble) chat style is enabled
roomInvites	boolean	Whether room invites are enabled
cameraFollow	boolean	Whether camera follow is enabled
flags	int	Bitfield of additional settings
chatType	int	Chat style type ID

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

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

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

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

S→C 3284 - InfoFeedEnable

Nitro: INFO_FEED_ENABLE Source: EnableNotificationsComposer, InfoFeedEnableMessageEvent

Field	Type	Notes
enabled	boolean	Whether the info feed is enabled

Notifies the client whether the hotel info feed is enabled.

S→C 2023 - InClientLink

Nitro: IN_CLIENT_LINK Source: NuxAlertComposer, InClientLinkEvent

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

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

S→C 2725 - UserInfo

Nitro: USER_INFO Source: UserDataComposer, UserInfoEvent

Full user info for the logged-in session. Same fields as UserInfoDataParser.

Field	Type	Notes
userId	int	Account ID
username	string	Username
figure	string	Figure string
gender	string	"M" or "F"
motto	string	Personal motto
realName	string	Real name (if enabled)
directMail	boolean	Whether direct mail is enabled
respectsReceived	int	Total respects received
respectsRemaining	int	Respects the user can still give today
respectsPetRemaining	int	Pet respects remaining today
streamPublishingAllowed	boolean	Whether stream publishing is allowed
lastAccessDate	string	Last login date string
canChangeName	boolean	Whether the user can change their name
safetyLocked	boolean	Whether the account is safety-locked

Delivers the full user info (ID, figure, credits, permissions) for the logged-in session.

S→C 3920 - UnitInfo

Nitro: UNIT_INFO Source: RoomUserDataComposer, RoomUnitInfoEvent

Room unit info (user/bot/pet entering or updating in room). Same structure as RoomUnitInfoParser.

Field	Type	Notes
count	int	Number of unit info entries
[count × roomIndex]	int	Room unit index
[count × userId]	int	Account ID
[count × username]	string	Username
[count × figure]	string	Figure string
[count × type]	int	Room unit type (1=user, 4=bot)
[count × currentX]	int	Current tile X
[count × currentY]	int	Current tile Y
[count × currentZ]	string	Current tile height
[count × headDirection]	int	Head direction * 45°
[count × direction]	int	Body direction * 45°

Delivers room unit info (figure, position, type) for one or more users/bots entering or updating in the room.

S→C 3898 - UserProfile

Nitro: USER_PROFILE Source: UserProfileComposer, UserProfileEvent

Response to requesting a user profile. 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
achievementPoints	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

Delivers a user's public profile (look, motto, achievements, groups, online status) for the profile dialog.

S→C 3475 - UserCredits

Nitro: USER_CREDITS Source: UserCreditsComposer, UserCreditsEvent

Field	Type	Notes
credits	string	Credit balance as a string (e.g. "500")

Delivers the user's current credit balance.

S→C 2018 - UserCurrency

Nitro: USER_CURRENCY Source: UserCurrencyComposer, UserCurrencyEvent

Field	Type	Notes
count	int	Number of currency entries
[count × type]	int	Currency type ID
[count × amount]	int	Current balance of this currency

Delivers the user's current balance for all activity point currency types.

S→C 2275 - ActivityPointNotification

Nitro: ACTIVITY_POINT_NOTIFICATION Source: UserPointsComposer, ActivityPointNotificationMessageEvent

Field	Type	Notes
amount	int	New total balance of this currency type
amountChanged	int	Amount gained/lost in this transaction (signed)
type	int	Currency type ID

Notifies the client of a change in activity point balance (earned or spent).

S→C 411 - UserPermissions

Nitro: USER_PERMISSIONS Source: UserPermissionsComposer, UserPermissionsEvent

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

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

S→C 2586 - UserPerks

Nitro: USER_PERKS Source: UserPerksComposer, PerkAllowancesMessageEvent

(no Arcturus composer)

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

Field	Type	Notes
count	int	Number of perk entries
[count × code]	string	Perk code string
[count × message]	string	Localisation message
[count × isAllowed]	boolean	Whether this perk is currently allowed

Delivers the list of perk permissions for the current user (what actions they are allowed). Nitro-only.

S→C 2875 - UserHomeRoom

Nitro: USER_HOME_ROOM Source: UserHomeRoomComposer, NavigatorHomeRoomEvent

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

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

S→C 2524 - UserFavoriteRoom

Nitro: USER_FAVORITE_ROOM Source: FavoriteRoomChangedComposer, FavouriteChangedEvent

(no Arcturus composer)

Delivers a favourite room change notification.

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

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

S→C 151 - UserFavoriteRoomCount

Nitro: USER_FAVORITE_ROOM_COUNT Source: FavoriteRoomsCountComposer, FavouritesEvent

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

Delivers the user's favourite rooms list with the configured limit.

S→C 126 - UserIgnored

Nitro: USER_IGNORED Source: IgnoredUsersComposer, IgnoredUsersEvent

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

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.

S→C 207 - UserIgnoredResult

Nitro: USER_IGNORED_RESULT Source: RoomUserIgnoredComposer, IgnoreResultEvent

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

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

S→C 1243 - AccountSafetyLockStatusChange

Nitro: ACCOUNT_SAFETY_LOCK_STATUS_CHANGE Source: UnknownStatusComposer, AccountSafetyLockStatusChangeMessageEvent

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

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

S→C 3679 - UserSanctionStatus

Nitro: USER_SANCTION_STATUS

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)

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

S→C 1203 - TalentTrackLevel

Nitro: TALENT_TRACK_LEVEL Source: UserCitizinShipComposer, TalentTrackLevelMessageEvent

(no Arcturus composer)

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

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

S→C 3738 - NoobnessLevel

Nitro: NOOBNESS_LEVEL Source: NewUserIdentityComposer, NoobnessLevelMessageEvent

(no Arcturus composer)

Sends the user's "noobness level" status.

Field	Type	Notes
noobnessLevel	int	Noobness level value

Delivers the user's 'noobness level' status. Nitro-only.

S→C 2033 - AvailabilityStatus

Nitro: AVAILABILITY_STATUS Source: AvailabilityStatusMessageComposer, AvailabilityStatusMessageEvent

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

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

S→C 1488 - SecurityMachine

Nitro: SECURITY_MACHINE Source: MachineIDComposer

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

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

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

S→C 1450 - UserClothing

Nitro: USER_CLOTHING Source: UserClothesComposer, FigureSetIdsMessageEvent

Field	Type	Notes
count	int	Number of figure set IDs
[count × figureSetId]	int	Clothing figure set ID
furniCount	int	Number of bound furniture names
[furniCount × name]	string	Furniture type name bound to a figure set

Delivers the user's clothing set (figure set IDs and bound furniture names) for the avatar editor.

S→C 10 - ClientLatency

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

(no Arcturus composer)

Sent periodically by the server to trigger a latency measurement. Client replies with C→S 295 (CLIENT_LATENCY) carrying elapsed time.

Periodic server keepalive that triggers a client-side latency measurement. Client replies with the elapsed time.

Body: (empty)

S→C 91 - PhoneTryVerificationCodeResult

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

(no Arcturus composer)

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

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

S→C 563 - CheckUserName

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

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

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

S→C 600 - AvailabilityTime

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

(no Arcturus composer)

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

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

S→C 612 - EmailStatus

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

(no Arcturus composer)

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

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

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.

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

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

S→C 800 - PhoneTryNumberResult

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

(no Arcturus composer)

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

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

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")

Delivers user classification labels (staff, ambassador, etc.) for a list of users. Nitro-only.

S→C 1787 - NotificationElementPointer

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

(no Arcturus composer)

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

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

S→C 1808 - InterstitialMessage

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

(no Arcturus composer)

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

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

S→C 1815 - ChangeEmailResult

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

(no Arcturus composer)

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

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

S→C 2890 - PhoneCollectionState

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

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

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

S→C 3639 - NewUserExperienceNotComplete

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

(no Arcturus composer)

Sent to new users who have not completed the new user experience.

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

Body: (empty)