Multiplayer overview

Multiplayer games allow users to play together and have a shared experience in the world that you build. When building multiplayer games, you would need a set of technologies that work seamlessly together to deliver a great experience. At Microsoft, we have a suite of services that you can use as a complete solution or with your studio’s existing technology to build cross-platform multiplayer experiences. This means you can continue to use whatever you have in combination with our services. Our services are scalable and are designed to help you build a wide range of scenarios. Your multiplayer experience may be competitive in nature such as one versus one, team-based, or “battle royale” style. Or it may be cooperative in nature where you allow users to help one another out. It’s suited to meet a range of needs - from an environment with set boundaries to a large open world in Massively Multiplayer Online (MMO) games. This topic provides an overview of our technologies to support features such as dedicated server hosting, peer-to-peer, matchmaking, networking, invites and joins, game session management, and game chat.

Features

Our technologies and services are grouped according to multiplayer features. Some features have multiple technologies or services to meet different needs. To see how these services combine with other popular multiplayer features like friends, commerce, live ops, and game analytics, see XBOX and PC multiplayer design guidance and Cross-platform multiplayer design guidance.

Area	Description	Technology/service	Introduction	SDK
Networking	Game to game data communication	PlayFab Party	Party is a secure cross-platform networking communication solution. It’s included at no extra cost for eligible XBOX ecosystem developers through PlayFab Foundation Mode. For PC, you’re also free to use your own networking stack or utilize middleware solutions without any restrictions.	PlayFab Party SDK
Chat	In-game voice and text chat among players	PlayFab Party	Party is a cross-platform networking communication solution that includes both voice and text chat with accessibility options like text-to-speech, speech-to-text, and real-time translation. It’s included at no extra cost for eligible XBOX ecosystem developers through PlayFab Foundation Mode. Party also provides an XBOX services Plugin to help you achieve XBOX requirements (XR) compliance and standard online safety communication. For PC, you’re free to use your own voice chat technology or utilize middleware solutions. However, you must comply with the XBOX services user’s online safety settings regardless of underlying voice technology for both PC and XBOX consoles.	PlayFab Party SDK
		Game Chat 2	Game Chat 2 enables cross network communication between XBOX Console and Windows 10 titles. When using Game Chat 2, you’re required to provide your own network mesh. However, platform APIs provided by Game Chat 2 automatically enable your titles adhere to any communication, privacy, or security related XBOX requirements (XRs). The APIs are tightly coupled to XBOX services identity. Game Chat 2 also provides built-in accessible chat features such as Text-To-Speech (TTS) and Speech-To-Text (STT).	GDK (Game Chat 2)
Invites/Join	Out-of-game invite and join behavior	XBOX Multiplayer Manager (MPM)	XBOX Multiplayer Manager (MPM) is a client side API. This means that it can be used only if you have a client-host architecture. It enables you to add capabilities like sending game invites, accepting invites to join a game, and display recent players to your game. Players are able to send out-of-game invite toasts or join their friends via Game Bar or XBOX App. You can use both system provided UI known as Title Callable User Interface (TCUI) or your own custom UI to display multiplayer options, status, and progress. MPM is designed to enable common multiplayer scenarios that follow best practices quickly. So it handles many XBOX Requirements (XRs) that your game must implement in order to pass certification. MPM works best for games with up to eight players. Games with higher player counts need to use XBOX Multiplayer Session Directory (MPSD) API directly.	GDK
		XBOX Multiplayer Session Directory (MPSD)	XBOX Multiplayer Session Directory (MPSD) is selected and used by many titles because of its highly customizable functionalities, scalability and importantly, reliability. MPSD APIs have MPM capabilities and more. One difference is that MPSD can be used for server-client architecture and provides advanced features with more customization. MPSD offers managed initialization for servers. This means that it can work with SmartMatch to help determine Quality of Service (QoS) during server requests and manage allocation/deallocation. It also has more session management features like game session metadata storage and synchronization of updates. Plus, you can use service-to-service (S2S) call patterns to efficiently manage multiple users through single service calls. For games with eight or more players, make sure that you use MPSD instead of MPM. For games with hundred or more players like Massive Multiplayer Online (MMO) games, use MPSD XSAPI S2S.	GDK
		XBOX Multiplayer Activity (MPA)	Available from 20.06+, GDK now includes XBOX Multiplayer Activity (MPA). MPA is the latest service with simplified APIs designed for developers who have their own matchmaking and session services. It’s used to implement out-of-game invite and join behavior, to comply with XBOX requirements (XRs), with your own session management solution. You can call MPA directly from your own services via MPA’s S2S APIs. You don’t need to integrate with MPM/MPSD.	GDK
		PlayFab Lobby	The PlayFab Lobby component of PlayFab Multiplayer supports members inviting other players to their lobby directly via the lobby service. These invites work cross-platform when used in-game. Players may also share the lobby’s connection string over out-of-game platform-specific invite mechanisms.	PlayFab Multiplayer Client SDK
Matchmaking	Match individuals and teams for gameplay based on various rules	XBOX SmartMatch	XBOX SmartMatch technology supports custom matchmaking based on a set of specifications and rules. It’s able to provide simple matchmaking or more complex ranked multiplayer options in your game. While SmartMatch supports cross-device play between your game on the XBOX Console and your XBOX services game on PC, it doesn’t support matchmaking across games using other identities such as Steam or PlayStation. You’re also free to use your own matchmaking service but would need to integrate with MPA to support XBOX invite and join behaviors to meet XBOX compliance requirements. Consider using PlayFab Matchmaking for cross-platform and cross-identity matchmaking.	GDK
		PlayFab Matchmaking	PlayFab Matchmaking offers an identity and platform agnostic matchmaking service included at no extra cost for eligible XBOX ecosystem developers through PlayFab Foundation Mode. It provides you with the ability to create matchmaking logic through match attributes and queue configurations. For ease of use, the service also scales automatically to handle matchmaking workloads. It also manages common error handling and backfills. It can also be used together with PlayFab Servers to request, allocate, and deallocate multiplayer game servers automatically for you. To help you predict trends and optimize loads, it also offers matchmaking statistics and queue analytics.	PlayFab Multiplayer Client SDK
Session browse	Maintain list of players in a game session and/or browse players looking for online play	XBOX Multiplayer Session Directory (MPSD)	Multiplayer Session Directory (MPSD) provides you with the capability to maintain a list of multiplayer game sessions and offer users a different method to join multiplayer games - enabling search for available games based on input parameters. MPSD can only be used for XBOX services–enabled titles developed for XBOX consoles and PC. If you want to create session browse with a list that includes users on other platforms or identities, you would need a custom session service or other middleware solutions.	GDK
		PlayFab Lobby	The PlayFab Multiplayer client SDK includes a cross-platform scalable session service with support for real-time push notifications. It’s a highly customizable grouping mechanism for players to find and play games together. PlayFab Lobby and Matchmaking work seamlessly together to create cohesive multiplayer experiences for your title.	PlayFab Multiplayer Client SDK

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Next step

Learn how you can use our technology as a complete suite or in combination with your custom solution/other middleware solutions.

For XBOX and PC title development, see XBOX and PC multiplayer design guidance.
For cross-platform title development, see Cross-platform multiplayer design guidance.

XBOX Services

PlayFab

Features

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