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Old Knowledge Base
  • Knowledge Base
    • Getting to know us
  • Where to Buy
    • Become a Sponsor
    • Heathen License Agreement
  • General
    • ๐Ÿ”ŽTable of Contents
    • ๐ŸคฉGetting Started
      • Indie Check List
      • Sourcing Resources
        • ๐Ÿง™โ€โ™‚๏ธCommunity
        • ๐Ÿงžโ€โ™‚๏ธManaged Services
        • ๐Ÿ“ฃMarketing
        • ๐ŸงชTesting
    • ๐ŸงžTips and Tricks
      • Fundamentals
        • Development Phases
      • Unity
        • Package Manager Installs
          • Missing asset after update
        • Unity Release Version
      • Unreal
        • Unity to Unreal
        • Quick Start
    • ๐Ÿ“Design
      • โ˜๏ธQuick Start
      • ๐ŸฅพBootstraping
      • ๐Ÿค‘Monetization
        • What not to do
        • Models
          • Free
          • Free to Play
          • Pay to Play
          • Pay to Win
          • Play to Earn
        • Tools
          • ๐Ÿ˜กArtificial Scarcity
          • ๐Ÿค‘Bundles
          • ๐Ÿค”Community Marketplace
          • ๐Ÿค‘Expansions
          • ๐Ÿ˜กFear of Missing Out (FOMO)
          • ๐Ÿ˜กGatcha Mechanics
          • ๐Ÿค”Microtransactions (MTX)
          • ๐Ÿ˜กNFT
            • ๐Ÿ˜กBlockchain
          • ๐Ÿค”No Spend Cap
          • ๐Ÿ˜กPremium Currency
          • ๐Ÿค”Season
          • ๐Ÿค‘Subscription
          • ๐Ÿ˜กSurprise Mechanics
      • ๐ŸŽฎMultiplayer
        • Networking Tools
        • Terminology
      • ๐ŸคนMulti-Scene Architecture
      • ๐ŸŒProject Architecture
      • ๐Ÿ˜ŠPlayer Motivation
    • ๐Ÿ—๏ธDevelopment
      • โ˜๏ธQuick Start
      • โ˜Ž๏ธCallbacks & Delegates
      • โ”Conditional Compilation
      • ๐ŸชณDebugging
      • ๐ŸšงDevOps
        • โ˜•Team Collaboration
        • ๐Ÿ›‚Git Control & Unity
      • โ‰๏ธError Handling
        • System Dialog
        • Reporting
      • ๐ŸคฏIntelliSense
      • ๐ŸชถLambda Expressions
      • ๐Ÿคนโ€โ™€๏ธMulti Platform Projects
      • ๐Ÿ“‘Namespace and Using
      • ๐ŸŽฎUnity's "New" Input System
      • ๐Ÿ”ผUpdating Visual Studio and C#
      • ๐Ÿ’กVisual Scripting
    • โš ๏ธPublishers
    • ๐ŸงชTesting
      • ๐Ÿ‘‹Introduction
      • โœ๏ธWriting Formal Tests
    • ๐Ÿง™โ€โ™‚๏ธCommunity
      • โ˜๏ธQuick Start
    • ๐Ÿ“ฃMarketing
      • โ˜๏ธQuick Start
      • ๐Ÿ“ŒTips and Tactics
      • ๐Ÿค“Market Research
    • ๐Ÿ“†Release
    • ๐Ÿ—บ๏ธLive
  • Steam
    • โ˜๏ธQuick Start
    • ๐Ÿ†Achievements
    • ๐ŸŒณBranches
    • ๐Ÿ—ฃ๏ธCommunity Hub
    • โฌ†๏ธUploading to Steam
    • โ˜๏ธCloud Save
    • ๐Ÿ†”CSteamID
    • ๐Ÿ”ŽDiscovery Queue
    • ๐Ÿ•น๏ธDownloadable Content
    • ๐ŸšซEarly Access
    • ๐Ÿ–ฑ๏ธInput
    • ๐Ÿ“ฆInventory
      • ๐Ÿ”จCrafting System
      • ๐Ÿ› ๏ธItem Definition Tools
      • ๐Ÿ’ธMicrotransactions
      • ๐ŸŽPromo Items
    • ๐ŸšขLaunch
    • ๐Ÿฅ‡Leaderboards
      • ๐Ÿ—ฃ๏ธAdvanced Profiles
    • ๐ŸŽฎMultiplayer
      • โ˜๏ธGetting Started
      • ๐ŸงชDev and Test
      • ๐Ÿง‘โ€โš–๏ธAuthentication
      • ๐Ÿ›‹๏ธLobby
      • ๐Ÿง‘โ€๐Ÿคโ€๐Ÿง‘Matchmaking
      • ๐Ÿง‘โ€๐Ÿ”งRich Presence
      • ๐Ÿ’ฌRoom Systems
      • ๐Ÿ’Steam Game Server
        • ๐Ÿ‘ทBuilds
        • โš™๏ธConfiguration
        • ๐Ÿ“‹Server Browser
        • ๐ŸงSetup Linux
      • ๐Ÿ—ฃ๏ธTerminology
    • ๐ŸคนMulti-Platform Project
    • ๐ŸงชPlaytest
    • ๐Ÿ›‹๏ธRemote Play
    • ๐Ÿ‘€Reviews
    • ๐ŸƒRunning a Build
    • ๐Ÿ’ถSales
    • โญStats
    • ๐Ÿ”‘Steam API Key
    • ๐Ÿ“ƒsteam_appid.txt
    • ๐Ÿ–ฅ๏ธSteam Deck
    • โš™๏ธSteamworks
    • ๐ŸคฏStore Page
    • ๐Ÿ› ๏ธWorkshop
      • Creating an Item
      • In-Game Browser
      • Subscribed Items
    • ๐Ÿง‘โ€๐ŸซUser Information
      • Unity User Tools
      • Unreal User Tools
    • ๐Ÿ—ฃ๏ธVoice
  • Toolkit for Steamworks
    • Introduction
    • Maintenance Cycle
    • F.A.Q
    • Unity
      • โš ๏ธKnown Issues
      • Unity Asset Refund Policy
      • Installation
        • Networking Integrations
      • Getting Started
      • Debugging
      • Learning
      • API Extensions
        • App.Client
        • App.Server
        • App.Web
        • Authentication
        • BigPicture.Client
        • Clans.Client
        • Friends.Client
        • Input.Client
        • Inventory.Client
        • Leaderboards.Client
        • Matchmaking.Client
        • Overlay.Client
        • Parties.Client
        • RemotePlay.Client
        • RemoteStorage.Client
        • Screenshots.Client
        • StatsAndAchievements.Client
        • StatsAndAchievements.Server
        • User.Client
        • UserGeneratedContent.Client
        • Utilities
        • Utilities.Client
        • Voice.Client
      • Objects
        • Classes
          • Achievement Data
          • Achievement Object
          • App Data
          • Authentication Session
          • Authentication Ticket
          • Avg Rate Stat
          • Chat Room
          • Clan Chat Msg
          • Clan Data
          • Currency
          • Data Model
          • DLC Data
          • Downloadable Content Object
          • Favorite Game
          • Float Stat
          • Game Data
          • Input Action
          • Input Action Data
          • Input Action Set
          • Input Action Set Data
          • Input Action Set Layer
          • Input Action Update
          • Input Controller Data
          • Int Stat
          • Inventory Result
          • Item Data
          • Item Definition
          • Item Detail
          • Leaderboard Data
          • Leaderboard Entry
          • Leaderboard Object
          • Lobby Chat Msg
          • Lobby Data
          • Lobby Game Server
          • Lobby Member Data
          • Party Beacon Details
          • Rank Change
          • Remote Storage File
          • Stat Data
          • Steam Game Server Configuration
          • UGC Query
          • User Data
          • Steam Settings
            • Colors
            • Game Client
              • Inventory Settings
            • Game Server
          • User Leave Data
          • Workshop Item
          • Workshop Item Data
          • Workshop Item Data Create Status
          • Workshop Item Key Value Tag
          • Workshop Item Preview File
        • Components
          • Friend Manager
          • Game Server Browser Manager
          • Input Action Event
          • Input Action Glyph
          • Input Action Name
          • Inventory Manager
          • Item Shopping Cart Manager
          • Leaderboard Manager
          • Leaderboard User Entry
          • Overlay Manager
          • Steam Game Server Events
          • Steam Input Manager
          • Steamworks Event Triggers
          • UGC Query Manager
          • Voice Recorder
          • Voice Stream
        • Enums
          • Friend Dialog
          • Inventory Item Type
          • Language Codes
          • Overlay Dialog
          • Sample Rate Method
          • Valve Price Categories
        • Prefabs
          • ๐Ÿ“ฆClan Chat
          • ๐Ÿ“ฆClan List
          • ๐Ÿ“ฆClan Member Count
          • ๐Ÿ“ฆFriend Avatar
          • ๐Ÿ“ฆFriend Groups
          • ๐Ÿ“ฆFriend List
          • ๐Ÿ“ฆFriend Name
          • ๐Ÿ“ฆFriend Profile
          • ๐Ÿ“ฆSelectable Friend ID
        • Programming Tools
          • IChatMessage
          • ILeaderboardEntryDisplay
          • IUserProfile
          • IWorkshopBrowserItemTemplate
          • LobbyMemberSlot
          • User Invite Button
        • UI Components
          • Chat Auto Join
          • Chat Stream
          • Clan Chat Director
          • Clan Chat Member Counter
          • Clan Chat Member List
          • Clan List
          • Clan Profile
          • Friend Group
          • Friend Groups Display
          • Friend Invite Dropdown
          • Friend List
          • Friend Profile
            • Image Field
            • Message Options
            • Text Field
          • Input Action Glyph
          • Input Action Name
          • Leaderboard Entry UI Record
          • Leaderboard UI List
          • Lobby Chat Director
          • Lobby Member Slot
          • Lobby Manager
          • Party Lobby Control
          • Quick Match Lobby Control
          • Rich Presence Reader
          • Rich Presence Setter
          • Set Achievement Description
          • Set Achievement Icon
          • Set Achievement Name
          • Set User Avatar
          • Set User Id Input Field
          • Set User Id Label
          • Set User Name
          • Toggle Event Helper
          • Workshop Browser Simple Item Record
      • Legacy
        • Troubleshooting
        • Getting Started
          • GameObject Initialization
          • ScriptableObject Initialization
          • API Initialization
        • Build Upload Tool
        • Debugging Tools
          • Testing
        • Components
          • Steamworks Behaviour
          • Steamworks Creator
          • Steam System Events
    • Unreal
      • What's New!
      • Installation
      • Getting Started
      • Updating Steamworks SDK
      • Packaging
      • Game Instance
      • Sockets Net Driver
      • Online Subsystem
      • Data Assets
        • Achievement
        • Downloadable Content
        • Inventory Item
        • Leaderboard
        • Stat
      • Widgets
        • BP_FriendsListDisplay
        • BP_FriendsListEntry
        • BP_FriendsListGroup
        • BP_SteamAvatarImage
        • BP_SteamUserName
      • Blueprint Nodes
        • Functions
          • ๐Ÿ”ตAdd Favorite Game
          • ๐Ÿ”ตAdd History Game
          • ๐Ÿ”ตAdd Promo Item
          • ๐Ÿ”ตAdd Request Lobby List Filter
          • ๐Ÿ”ตAdvertise Game
          • ๐Ÿ”ตAssociate with Clan
          • ๐Ÿ”ตAttach Leaderboard UGC
          • ๐Ÿ”ตBegin Auth Session
          • ๐Ÿ”ตCancel Auth Ticket
          • ๐Ÿ”ตCheck Result Steam ID
          • ๐Ÿ”ตClear All Key Values
          • ๐Ÿ”ตClear Achievement
          • ๐Ÿ”ตClear Rich Presence
          • ๐Ÿ”ตClient Initialize
          • ๐Ÿ”ตClient Run Callbacks
          • ๐Ÿ”ตClient Should Restart
          • ๐Ÿ”ตCompue New Player Compatibility
          • ๐Ÿ”ตConsume Item
          • ๐Ÿ”ตCreate Lobby
          • ๐Ÿ”ตDecompress Voice
          • ๐Ÿ”ตDelete Lobby Data
          • ๐Ÿ”ตDeserialize Result
          • ๐Ÿ”ตDestroy Result
          • ๐Ÿ”ตDownload Leaderboard Entries
          • ๐Ÿ”ตDownload Leaderboard Entries for Users
          • ๐Ÿ”ตEnd Auth Session
          • ๐Ÿ”ตExchange Items
          • ๐Ÿ”ตFind Leaderboard
          • ๐Ÿ”ตFind or Create Leaderboard
          • ๐Ÿ“‚Game Server Browser
            • ๐Ÿ”ตPing Server
            • ๐Ÿ”ตPlayer Details
            • ๐Ÿ”ตRequest Server List
            • ๐Ÿ”ตServer Rules
          • ๐Ÿ”ตGenerate Items
          • ๐Ÿ”ตGet Achievement
          • ๐Ÿ”ตGet Achievement by Index
          • ๐Ÿ”ตGet Achievement Icon
          • ๐Ÿ”ตGet Achievement Is Achieved
          • ๐Ÿ”ตGet All Items
          • ๐Ÿ”ตGet App Build ID
          • ๐Ÿ”ตGet App Id
          • ๐Ÿ”ตGet App Owner
          • ๐Ÿ”ตGet Auth Session Ticket
          • ๐Ÿ”ตGet Auth Ticket for Web API
          • ๐Ÿ”ตGet Available Game Languages
          • ๐Ÿ”ตGet Available Voice
          • ๐Ÿ”ตGet Coplay Friends
          • ๐Ÿ”ตGet Current Beta Name
          • ๐Ÿ”ตGet Current Game Language
          • ๐Ÿ”ตGet DLC Count
          • ๐Ÿ”ตGet DLC Data By Index
          • ๐Ÿ”ตGet DLC Download Progress
          • ๐Ÿ”ตGet Earliest Purchase
          • ๐Ÿ”ตGet Favorite Game
          • ๐Ÿ”ตGet Friends
          • ๐Ÿ”ตGet Friend Coplay Game
          • ๐Ÿ”ตGet Friend Coplay Time
          • ๐Ÿ”ตGet Friend Count from Source
          • ๐Ÿ”ตGet Friend Game Played
          • ๐Ÿ”ตGet Friend Groups
          • ๐Ÿ”ตGet Friend Group Members
          • ๐Ÿ”ตGet Friend Group Name
          • ๐Ÿ”ตGet Friend Persona Name
          • ๐Ÿ”ตGet Followed
          • ๐Ÿ”ตGet Installed Depots
          • ๐Ÿ”ตGet Item Definition Properties
          • ๐Ÿ”ตGet Item Price
          • ๐Ÿ”ตGet Items with Price
          • ๐Ÿ”ตGet Items by ID
          • ๐Ÿ”ตGet Launch Command Line
          • ๐Ÿ”ตGet Launch Query Param
          • ๐Ÿ”ตGet Leaderboard Display Type
          • ๐Ÿ”ตGet Leaderboard Entry Count
          • ๐Ÿ”ตGet Leaderboard Name
          • ๐Ÿ”ตGet Leaderboard Sort Method
          • ๐Ÿ”ตGet Lobby Chat Entry
          • ๐Ÿ”ตGet Lobby Data
          • ๐Ÿ”ตGet Lobby Data by Index
          • ๐Ÿ”ตGet Lobby Game Server
          • ๐Ÿ”ตGet Lobby Members
          • ๐Ÿ”ตGet Lobby Member by Index
          • ๐Ÿ”ตGet Lobby Member Data
          • ๐Ÿ”ตGet Lobby Member Limit
          • ๐Ÿ”ตGet Lobby Owner
          • ๐Ÿ”ตGet Most Achieved Achievement Info
          • ๐Ÿ”ตGet My Steam Avatar
          • ๐Ÿ”ตGet My Steam ID
          • ๐Ÿ”ตGet My Steam Level
          • ๐Ÿ”ตGet Num Items with Price
          • ๐Ÿ”ตGet Persona Name
          • ๐Ÿ”ตGet Persona State
          • ๐Ÿ”ตGet Player Nickname
          • ๐Ÿ”ตGet Public IP
          • ๐Ÿ”ตGet Result Item Property
          • ๐Ÿ”ตGet Result Items
          • ๐Ÿ”ตGet Result Status
          • ๐Ÿ”ตGet Result Timestamp
          • ๐Ÿ”ตGet Stat
          • ๐Ÿ”ตGet Steam ID
          • ๐Ÿ”ตGet User Achievement
          • ๐Ÿ”ตGet User Float Stat
          • ๐Ÿ”ตGet User Int Stat
          • ๐Ÿ”ตGet User Restrictions
          • ๐Ÿ”ตGet Rich Presence
          • ๐Ÿ”ตGet User Rich Presence
          • ๐Ÿ”ตGet User Rich Presence Key by Index
          • ๐Ÿ”ตGet User Steam Avatar
          • ๐Ÿ”ตGet Voice
          • ๐Ÿ”ตGet Voice Optimal Sample Rate
          • ๐Ÿ”ตGrant Promo Items
          • ๐Ÿ”ตHas Friend
          • ๐Ÿ”ตId is Me
          • ๐Ÿ”ตId is Valid
          • ๐Ÿ”ตIndicate Achievement Progress
          • ๐Ÿ”ตInstall DLC
          • ๐Ÿ”ตInvite User To Game
          • ๐Ÿ”ตInvite User to Lobby
          • ๐Ÿ”ตInitialize
          • ๐Ÿ”ตIs App Installed
          • ๐Ÿ”ตIs Behind NAT
          • ๐Ÿ”ตIs Cybercafe
          • ๐Ÿ”ตIs DLC Installed
          • ๐Ÿ”ตIs Lobby Owner
          • ๐Ÿ”ตIs Low Violence
          • ๐Ÿ”ตIs Phone Identifying
          • ๐Ÿ”ตIs Phone Requiring Verification
          • ๐Ÿ”ตIs Phone Verified
          • ๐Ÿ”ตIs Steam Initialized
          • ๐Ÿ”ตIs Subscribed
          • ๐Ÿ”ตIs Subscribed App
          • ๐Ÿ”ตIs Subscribed from Family Sharing
          • ๐Ÿ”ตIs Subscribed from Free Weekend
          • ๐Ÿ”ตIs Timed Trial
          • ๐Ÿ”ตIs Two Factor Enabled
          • ๐Ÿ”ตIs VAC Banned
          • ๐Ÿ”ตJoin Lobby
          • ๐Ÿ”ตLeave Lobby
          • ๐Ÿ”ตLoad Item Definitions
          • ๐Ÿ”ตLogged On
          • ๐Ÿ”ตLog Off
          • ๐Ÿ”ตLog On
          • ๐Ÿ”ตLog On Anonymous
          • ๐Ÿ”ตMark Content Corrupt
          • ๐Ÿ”ตQuick Match
          • ๐Ÿ”ตRemove Favorite Game
          • ๐Ÿ”ตRemove History Game
          • ๐Ÿ”ตRemove Property
          • ๐Ÿ”ตReply to Friend Message
          • ๐Ÿ”ตRequest Current Stats
          • ๐Ÿ”ตRequest Eligible Promo Item Definitions IDs
          • ๐Ÿ”ตRequest Friend Rich Presence
          • ๐Ÿ”ตRequest Lobby Data
          • ๐Ÿ”ตRequest Lobby List
          • ๐Ÿ”ตRequest Prices
          • ๐Ÿ”ตRequest Store Auth URL
          • ๐Ÿ”ตRequest User Group Status
          • ๐Ÿ”ตRequest User Information
          • ๐Ÿ”ตRequest User Stats
          • ๐Ÿ”ตReset All Stats
          • ๐Ÿ”ตRun Callbacks
          • ๐Ÿ”ตSecure
          • ๐Ÿ”ตSend Lobby Chat
          • ๐Ÿ”ตSerialize Result
          • ๐Ÿ”ตSet Achievement
          • ๐Ÿ”ตSet Advertise Server Active
          • ๐Ÿ”ตSet Bot Player Count
          • ๐Ÿ”ตSet Dedicated Server
          • ๐Ÿ”ตSet Description
          • ๐Ÿ”ตSet Game Data
          • ๐Ÿ”ตSet Game Tags
          • ๐Ÿ”ตSet In-Game Voice Speaking
          • ๐Ÿ”ตSet Key Value
          • ๐Ÿ”ตSet Map Name
          • ๐Ÿ”ตSet Listen for Friends Messages
          • ๐Ÿ”ตSet Lobby Data
          • ๐Ÿ”ตSet Lobby Game Server
          • ๐Ÿ”ตSet Lobby Joinable
          • ๐Ÿ”ตSet Lobby Member Data
          • ๐Ÿ”ตSet Lobby Member Limit
          • ๐Ÿ”ตSet Lobby Owner
          • ๐Ÿ”ตSet Lobby Type
          • ๐Ÿ”ตSet Max Player Count
          • ๐Ÿ”ตSet Mod Directory Name
          • ๐Ÿ”ตSet Name
          • ๐Ÿ”ตSet Password Protected
          • ๐Ÿ”ตSet Persona Name
          • ๐Ÿ”ตSet Played with User
          • ๐Ÿ”ตSet Product
          • ๐Ÿ”ตSet Property
          • ๐Ÿ”ตSet Region
          • ๐Ÿ”ตSet Rich Presence
          • ๐Ÿ”ตSet Stats
          • ๐Ÿ”ตSet Spectator Name
          • ๐Ÿ”ตSet Spectator Port
          • ๐Ÿ”ตSet User Achievement
          • ๐Ÿ”ตSet User Float Stat
          • ๐Ÿ”ตSet User Int Stat
          • ๐Ÿ”ตShutdown
          • ๐Ÿ”ตStart Purchase
          • ๐Ÿ”ตStart Update Property
          • ๐Ÿ”ตStart Voice Recording
          • ๐Ÿ”ตSteam ID Tools
          • ๐Ÿ”ตStop Voice Recording
          • ๐Ÿ”ตStore Stats
          • ๐Ÿ”ตStore User Stats
          • ๐Ÿ”ตSubmit Update Property
          • ๐Ÿ”ตTransfer Item Quantity
          • ๐Ÿ”ตTrigger Item Drop
          • ๐Ÿ”ตUninstall DLC
          • ๐Ÿ”ตUpdate Avg Rate Stat
          • ๐Ÿ”ตUpdate User Avg Rate Stat
          • ๐Ÿ”ตUpload Leaderboard Score
          • ๐Ÿ”ตUser Has License for App
          • ๐Ÿ”ตWas Restart Requested
        • Events
          • ๐Ÿ”ปDlc Installed
          • ๐Ÿ”ปFriend Chat Msg
          • ๐Ÿ”ปFriend Rich Presence Update
          • ๐Ÿ”ปGame Overlay Activated
          • ๐Ÿ”ปInventory Item Definition Update
          • ๐Ÿ”ปInventory Results Ready
          • ๐Ÿ”ปLobby Chat Msg
          • ๐Ÿ”ปLobby Chat Update
          • ๐Ÿ”ปLobby Data Update
          • ๐Ÿ”ปLobby Game Created
          • ๐Ÿ”ปLobby Join Requested
          • ๐Ÿ”ปMicro Txn Authorization Response
          • ๐Ÿ”ปPersona State Change
          • ๐Ÿ”ปRich Presence Join Requested
          • ๐Ÿ”ปServers Connected
          • ๐Ÿ”ปServer Connect Failure
          • ๐Ÿ”ปServer Disconnected
          • ๐Ÿ”ปTicket for Web API Response
        • Types
          • ๐ŸŸฉAchievement Status
          • ๐ŸŸฉAuth Ticket Data
          • ๐ŸŸฉChat Entry
          • ๐ŸŸฉDecompress Voice Result
          • ๐ŸŸฉFloat Stat
          • ๐ŸŸฉGame Server Item Wrapper
          • ๐ŸŸฉGame Server Player Details Wrapper
          • ๐ŸŸฉGlobal Achievement Status
          • ๐ŸŸฉItem Count
          • ๐ŸŸฉItem Detail
          • ๐ŸŸฉItem Detail With Properties
          • ๐ŸŸฉItem Price
          • ๐ŸŸฉItem With Price
          • ๐ŸŸฉInt Stat
          • ๐ŸŸฉKey Value Pair
          • ๐ŸŸฉLeaderboard Entry
          • ๐ŸŸฉLobby Data
          • ๐ŸŸฉLobby Game Server
          • ๐ŸŸฉServer Achievement Status
          • ๐ŸŸฉServer Stat Float Value
          • ๐ŸŸฉServer Stat Int Value
          • ๐ŸŸฉUser Achievement Status
          • ๐ŸŸฉVoice Result
          • ๐ŸŸฉVoice Available Result
        • Enumerators
          • ๐ŸŸจUEBeginAuthSessionResult
          • ๐ŸŸจUEChatRoomEnterResponse
          • ๐ŸŸจUEFriendFlags
          • ๐ŸŸจUEChatEntryType
          • ๐ŸŸจUEChatMemberStateChange
          • ๐ŸŸจUELeaderboardDataRequest
          • ๐ŸŸจUELeaderboardDisplayType
          • ๐ŸŸจUELeaderboardSortMethod
          • ๐ŸŸจUELobbyComparison
          • ๐ŸŸจUELobbyDistanceFilter
          • ๐ŸŸจUELobbyType
          • ๐ŸŸจUEResult
          • ๐ŸŸจUESteamCurrencyCode
          • ๐ŸŸจUEServerMode
          • ๐ŸŸจUEUserHasLicenseForAppResult
          • ๐ŸŸจUEVoiceResult
      • C++
  • Toolkit for Physics
    • Unity
      • Installation
      • Core Features
        • Ballistics Tools
        • Buoyancy Tools
        • Force Effect Framework
        • Physics Data extended
        • Verlet Integration
      • Sample Scenes
        • Fantasy Style Ballistic Simulation
        • (3D) Deterministic Bounce Prediction
        • (2D) Deterministic Bounce Prediction
        • 1 Buoyancy Example
        • 1 Force Effect Fields
        • 2 Spherical Gravity
        • 3 Multi-body Gravity
        • 1 Verlet Spring Simple Transforms
        • 2 Verlet Spring Skinned Mesh
      • API
        • Ballistics
        • Buoyancy
        • Force Effects
        • Maths
        • Mesh Tools
      • Components
        • Ballistic Aim
        • Ballistic Path Line Render
        • Ballistic Path Follow
        • Buoyant Body
        • Buoyant Body Drag
        • Constant Acceleration
        • Constant Angular Velocity
        • Constant Linear Velocity
        • Force Effect Source
          • Force Effect Direction
          • Force Effect Field
        • Force Effect Reciever
        • Physics Data
        • Surface Tool
        • Trick Shot
        • Trick Shot Line
        • Verlet Spring
      • Objects
        • Force Effect
          • Attract Effect
          • Gravity Effect
          • Repulse Effect
          • Suspend Effect
          • Tractor Effect
          • Wind Effect
        • Point Volume
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On this page
  • Introduction
  • Callback Frequency
  • Initialization
  • Events
  • Should Restart
  • Failed to Initialize
  • Bootstrapping
  • Use
  • Game Instance Varaible
  • Lobby Data
  1. Toolkit for Steamworks
  2. Unreal

Game Instance

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Last updated 10 months ago

Introduction

Game Instance is a good place for global things to our game. Steam has quite a few global scoped "events" that we have exposed for you via the Steam Game Instance. This is also a good place to store the Steam ID's for the lobbies your players have joined, created, etc. See Use for more details.

Steamworks requires a few system-level features to function correctly such as a constant and steady call to Run_Callbacks, management of delegates handling system-level callbacks and management of artefacts loaded from Steam and referenced in Unreal such as images, inventory results, etc.

To handle this for you Heathen has created the Steam Game Instance class which extends Unreal's native Game Instance class. To use Steamworks you should create a new Blueprint based on Steam Game Instance or use the provided BP_Steam_Game_Instance.

Callback Frequency

Not applicable when using Steam Sockets as it will handle the callbacks on a background thread. This is however used if you are not initializing Online Subsystem Steam at all such as when working in the editor.

Expressed in seconds this is the time between Run Callback calls. This is an important value as it dictates how frequently messages from Valve's Steam will be invoked as callback delegates in your game. This impacts all asynchronous features of Steam which is most of them.

The system will clamp this value to be between 0.1 and 0.01 e.g. 10Htz to 100Htz the typical range being more frequently 30Htz to 60Htz

Initialization

Initialization is smart, if the API has been initialized by another system it will go with it and will still invoke the success events.

You will notice that initialization does require the use of a few nodes. The main node here is the Initialize Steam API function node. This will read the configuration you have provided from the Steam Game Instance and initialize Steam API for you. It will always initialize Steam Client API endpoints when executing on a client or listen server and will always initialise Steam Game Server API endpoints when executing on a dedicated server aka a "headless" server.

If you are building a dedicated server you will likely want to read the server configuration from some external source prior to calling this node.

The output of the node will indicate success or failure. If you are initializing for a client/listen server it may also indicate "Should Restart". This is a feature of Steam API, if the game was not launched from the Steam client then it will attempt to relaunch from the Steam client ... so if this is true you should close the game as Steam will be relaunching it from the Steam client its self.

Finally, we call a few event handlers so we can better organize our nodes.

Events

Should Restart

This occurs in the event that the game was not launched from the Steam client. It indicates that Steam API is attempting to relaunch the game from the Steam client and thus this instance of the game should be closed.

Failed to Initialize

This generally only happens if your user isn't logged into Steam, doesn't have Steam installed at all or doesn't own the game and thus the API can't initialize. In this case, you should generally notify the user of this issue and its common causes and then close the game gracefully.

Bootstrapping

The Bootstrap Your Game Here is the ideal place to warm up your game systems and runs right after Steam API has successfully initialized. This is where you would enable Steam Input, find your leaderboards, load system settings, read the player's inventory and initialise any additional game systems relevant to your game.

Use

Game Instance Varaible

The Steam Game Instance has all of Steam's global events and you can register to them easily by adding a Steam Game Instance (or your derived class) as a variable to whatever blueprint you want to leverage the events from. In the constructor for that blueprint set the variable to Steam Game Instance casting to whatever specific type you might need.

Once we have our Game Instance variable created and the logic to set it in the Construction Script we can then leverage the events from the instance as you would any other Blueprint event

Lobby Data

Steam Lobbies are generally a key part of your game and they are relevant between scene transitions. Its generally in your interest to store data about the lobbies your player is in on the Game Instance where it will happily persist and can easily be accessed from anywhere.

Custom Game Instance

Create a custom game instance derived from Steam Game Instance

DO NOT: Derive from the BP_SteamGameInstance That is simply a working example of how to do this you can check for ideas on how to set up your events.

Lobby Variable

Create a new variable of type Integer 64 ... this is where we will store our lobby ID when a lobby is created, joined, etc.

Handy Game Funcitons

Create functions that use the lobby and are specific to your game

These will be specific to your particular game, in this example our game has a concept of teams so we make a function to get or set the team for a player on the lobby metadata.

This function... again specific to our game ... this is just idea food for you to get thinking ...

Our function here takes in the Steam ID of the user to who we are setting the team as well as a Gameplay Tag that represents which team they will be assigned to.

We get the Hex ID from the Steam ID ... this just makes that long number a shorter Hex string

We append _Team to that and use the result as the "key" in our lobby data ... this will look something like ABCD1234_Team

We get the string name of our Team ... this might look like State.Team.1 which we set as the "value" of the key.

The end result is we have now stored ABCD1234_Team = State.Team.1 on our lobby as metadata ... this can then be read back by any member of the lobby at any time by simply getting the Game Instance and calling Get Team to return the Gameplay Tag that is the player's team.

Every blueprint you make will have a construction function ready for you to set up. This is where you should set the Game Instance variable as this happens before anything else so you will know that this will always be set when this object is in scope.

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