INTRODUCING ODIN SDK

Voice chat for your apps, games and websites

Crystal clear voice chat with deep game engine integration for Unity and Unreal

Made for developers

In just a few lines of code you can connect and join a room. See the full list of our SDKs here.

Our ODIN SDK is deeply integrated into Unity and features automatic 3D spatial audio. Use the tools you know like AudioSource and AudioListener or the built-in Unity AudioMixer for your voice chat integration.

Manage all aspects of our Voice SDK within Unity and integrate it in a couple of hours into your game or XR experience.

Get started for free

Explore the docs | Download SDK

Our ODIN SDK is deeply integrated into Unreal Engine 4 and 5 and features Blueprint support and automatic 3D spatial audio. Our Voice SDK leverages Unreal Engines audio processing so that you can use the tools you know and love!

Manage all aspects of our Voice SDK within the Unreal Engine Editor and integrate it in a couple of hours into your game or XR experience.

Get started for free

Explore the docs | Download SDK

Integrating our Voice SDK in any website with vanilla JavaScript is seamless, effortless, and easy. Add our script and join a room, that’s it.

<html>
    <head>
        <script type="text/javascript" src="https://4npcdn.com/2355/odin/javascript/latest/odin.min.js"></script>
        <script type="text/javascript">
            var connectOdin = async function(room, user) {
                const token = await getToken(room, user);
                const odinRoom = await OdinClient.initRoom(token);
                await odinRoom.join();
                return odinRoom;
            }
            connectOdin("My Room", "John Doe").then(odinRoom => {
               console.log("Connected to room", odinRoom);
            });
        </script>
    </head>
</html>

Explore the docs | Download SDK

Adding our Voice SDK to any modern JavaScript framework like Angular, Svelve, Vue, React is super easy. Just add our npm package @4players/odin to your package.json and connect a room. That’s it.

import { OdinClient } from '@4players/odin';
import { TokenGenerator } from "@4players/odin-tokens";

const generator = new TokenGenerator(apiKey);
const token = generator.createToken("My Room", "John Doe");
const odinRoom = await OdinClient.initRoom(token);
await odinRoom.join();

Explore the docs | Download SDK

Add ODIN to your C or C++ projects with our simple to use ODIN Core SDK. Our Core SDK is the foundation of all other SDKs and features an easy-to-use interface.

// Generate access token - should be done on a server
char room_token[512];
OdinTokenGenerator* generator = odin_token_generator_create("__YOUR_ACCESS_KEY__");
odin_token_generator_create_token(generator, "My Room", "John Doe", room_token, sizeof(room_token));
odin_token_generator_destroy(generator);

// Setup event handler and join a room.
OdinRoomHandle room = odin_room_create();
odin_room_set_event_callback(room, handle_odin_event, NULL);
odin_room_join(room, gateway_url, room_token);

Explore the docs | Download SDK

Features that speak for themselves

Fast & Easy Integration

It can’t get easier than this: The integration of ODIN into any existing project is simple and fast – taking just a few hours.

Fully Integrated

Unlike comparable tools, ODIN is integrated directly into existing game engines, offering a seamless and powerful connection.

Highly Reliable & Scalable

Our software runs on highly optimized servers and is monitored 24/7 globally – no matter how many users you have or how distributed your operations are.

Lightning Fast & Low Latency

No lag, no interruptions. Just crystal-clear communication with ultra-low latency.

Cross Platform

Different platforms. Same code. Same high performance. ODIN knows no boundaries and can be used cross-platform on all major systems.

Built-In Privacy & Security

Your users care about privacy – so do we! ODIN does not require personal data and is fully GDPR-compliant. Germany has been one of the world’s most demanding market in terms of data protection. We understand it better than any of our competitors.

Fully Adaptable

Whatever you need, ODIN’s open structure allows true flexibility and is fully customizable. Your game, your rules.

Zero Bookkeeping & Stateless

No need to create and manage rooms and users lifecycle. Odin will handle everything for you.

Next-Gen solutions for your business

Our technology has been battle-tested in gaming - the toughest environment imaginable for real-time applications and services. Leverage our know-how and expertise today! Learn more how our products and services empower your business.

Flexible and fair pricing

Traffic included

As one of the largest providers of game servers in the world, traffic is not an issue for us – one thing less you need to worry about.

Hosting included

Don’t worry about server costs, maintenance and operations. We’ll handle world-wide server hosting for you.

Unlimited Rooms

Our software automatically creates and destroys rooms for you. Create as many rooms as you like. There is no limit.

SDKs included

Our Voice SDK is deeply integrated into Unity and Unreal Engine via our free SDKs. For hard core developers a C based client library is available.

If the pricing model does not work for you, please get in touch with us so we can decide a custom proposal to fit your needs.

FREE

Free

Free for development

Up to 25 CCUs
No registration required
Free Unity and Unreal Engine SDK
Support via Discord/Community

Download SDK

Pro

€500/month

For larger games and experiences

2.000 CCUs included
0,29 € per additional CCU
Free Unity and Unreal Engine SDK
Support via Discord, Mail, Phone
Production ready
~~4Players branding required~~

Indie

Free

For smaller games and experiences

Up to 10.000 minutes/month
Registration required
Free Unity and Unreal Engine SDK
Support via Discord/Community
Production ready
4Players branding required *

Next-generation technology

Existing voice-chat solutions rely on WebRTC, which is an old legacy browser extension. Yes, it’s true: a browser extension with hundreds of dependencies and an awfully bloated API.

ODIN is developed from scratch based on HTTP/3 and QUIC with nearly zero dependencies allowing us to deliver excellent voice quality seamlessly embedded into your game engine.

Get started for free

Hosted by us or host yourself

We love gaming! We are gamers! We know that real-time communication is essential for a fun and immersive gaming experience. This is why our new and innovative voice chat adds another layer of realism to any game or any other virtual interaction, elevating regular voice from chatter to a true communication feature.

With our Voice SDK, we provide a complete out-of-the-box solution that has been designed and built from the ground up for gamers, developers and publishers: flexible, feature-rich and cross-platform.

Reduce development time by leveraging our best-in-class technology to deliver seamless in-app communication.

4Players has more than 20 years of experience hosting game and voice servers for gamers. You can trust in us that we provide the highest quality of service for you and your players.

If you want to be in charge, no worries, we got you covered. Our servers can be easily hosted everywhere. Contact us for more information about self-hosting.

Get in touch

Our USPs

This table shows strengths and weaknesses of various voice SDKs available in the market.

Feature	ODIN	Photon	TeamSpeak	Agora
Pricing models
Cloud hosting Let us deal with the setup, administration and bandwidth costs. ODIN leverages worldwide production-ready and battle-tested server infrastructure from 4Netplayers, who have been providing voice and game servers for more than 20 years.
Let us deal with the setup, administration and bandwidth costs. ODIN leverages worldwide production-ready and battle-tested server infrastructure from 4Netplayers, who have been providing voice and game servers for more than 20 years.
Self hosting ODIN infrastructure can be hosted on-premise. Run our server software on your own infrastructure allowing you complete control and customization of your deployment environment. ODIN comes with Docker support for easy deployment wherever needed.
ODIN infrastructure can be hosted on-premise. Run our server software on your own infrastructure allowing you complete control and customization of your deployment environment. ODIN comes with Docker support for easy deployment wherever needed.
Traffic included Traffic costs can grow significantly if voice chat is used heavily or by many users and it’s hard to estimate those costs. Every month will have its surprise day when you get your invoice. Deals made for 4Netplayers with cloud and server providers all over the world allow us to include traffic costs in all our tiers. No hidden or hard to estimate costs for you.
Traffic costs can grow significantly if voice chat is used heavily or by many users and it’s hard to estimate those costs. Every month will have its surprise day when you get your invoice. Deals made for 4Netplayers with cloud and server providers all over the world allow us to include traffic costs in all our tiers. No hidden or hard to estimate costs for you.
Users per room How many users can join the same room to talk together. MMORPGs or larger battle royal games should be able to bring hundreds of users together. There is no limit for users per room at ODIN. However, there is a technical limit that depends on the implementation (i.e. a lot of voice communication, or more text and simple data). 2000 users should be no issues at all.	2000+	50	1000	128
How many users can join the same room to talk together. MMORPGs or larger battle royal games should be able to bring hundreds of users together. There is no limit for users per room at ODIN. However, there is a technical limit that depends on the implementation (i.e. a lot of voice communication, or more text and simple data). 2000 users should be no issues at all.
SDKs
Deep Unity Integration ODIN provides a full-featured Unity SDK and leverages Unity’s audio processing pipeline for capture and playback. Developers work with Unity tools they know like AudioSource and AudioMixers and get 3D positional audio automatically. ODIN fully integrates into more advanced 3D audio solutions and comes with a couple of examples and scripts for easy integration of different materials and their damping effects (like glass or concrete).
ODIN provides a full-featured Unity SDK and leverages Unity’s audio processing pipeline for capture and playback. Developers work with Unity tools they know like AudioSource and AudioMixers and get 3D positional audio automatically. ODIN fully integrates into more advanced 3D audio solutions and comes with a couple of examples and scripts for easy integration of different materials and their damping effects (like glass or concrete).
Deep Unreal Engine Integration Many voice SDKs are just a wrapper around browser based WebRTC libraries. ODIN offers native Unreal Engine support with simple to use Blueprint support for easy and reliable voice integration. Use the tools you know within the Unreal Engine.
Many voice SDKs are just a wrapper around browser based WebRTC libraries. ODIN offers native Unreal Engine support with simple to use Blueprint support for easy and reliable voice integration. Use the tools you know within the Unreal Engine.
Unreal Engine 5 support Unreal Engine 5 is best suited for large open-world games. This requires a reliable voice technology for as many users. ODIN is a great fit and offers full Unreal Engine 5 support.
Unreal Engine 5 is best suited for large open-world games. This requires a reliable voice technology for as many users. ODIN is a great fit and offers full Unreal Engine 5 support.
Web Support ODIN is available for the web as vanilla JavaScript script or `npm` package and can be integrated into websites or apps built with web technologies (like Angular, Vue, React, ReactNative, Svelte, …) in a couple of minutes. ODIN cross-platform compatibility allows users to interact (i.e. chat, realtime data synchronization) with each other independently where they are. Think about users talking within a CRM tool with users running in a virtual VR shopping center. All this is possible with ease with ODIN.
ODIN is available for the web as vanilla JavaScript script or `npm` package and can be integrated into websites or apps built with web technologies (like Angular, Vue, React, ReactNative, Svelte, …) in a couple of minutes. ODIN cross-platform compatibility allows users to interact (i.e. chat, realtime data synchronization) with each other independently where they are. Think about users talking within a CRM tool with users running in a virtual VR shopping center. All this is possible with ease with ODIN.
Swift SDK Apple developers are picky about their tools as they are used to work with the best tech. Our Swift SDK offers a quick and easy integration into the Apple eco-system. The SDK comes with Playgrounds to learn the SDK very quickly and integrates seamlessly with AVAudioEngine.
Apple developers are picky about their tools as they are used to work with the best tech. Our Swift SDK offers a quick and easy integration into the Apple eco-system. The SDK comes with Playgrounds to learn the SDK very quickly and integrates seamlessly with AVAudioEngine.
Essential features
Client-Server There are two basic networking topologies possible: Peer to Peer and Client-Server. In peer to peer solutions there is no central hub but each user must send his data to each other user. Data traffic grows exponentially with each additional user and does not work for more than 4 users reliable. Not considering issues with firewalls, NAT and many other shortcomings. Client-server software has a central hub and can handle thousands of users.
There are two basic networking topologies possible: Peer to Peer and Client-Server. In peer to peer solutions there is no central hub but each user must send his data to each other user. Data traffic grows exponentially with each additional user and does not work for more than 4 users reliable. Not considering issues with firewalls, NAT and many other shortcomings. Client-server software has a central hub and can handle thousands of users.
Latest technology Most voice SDKs are built on top of WebRTC. WebRTC is a monstrous library to manage all sorts of real-time communication into browsers. WebRTC is a very old and very complex piece of software. ODIN is built from scratch on latest tech like HTTP3/QUIC on a proprietary protocol that is developed with deep game engine integration and spatial 3D audio support in mind.
Most voice SDKs are built on top of WebRTC. WebRTC is a monstrous library to manage all sorts of real-time communication into browsers. WebRTC is a very old and very complex piece of software. ODIN is built from scratch on latest tech like HTTP3/QUIC on a proprietary protocol that is developed with deep game engine integration and spatial 3D audio support in mind.
Multi-room support Voice solutions typically use a room or channel based approach where all users connected to the same room or channel can talk to each other. Some use-cases require users to be able to join multiple rooms at the same time. ODIN comes with native multi-room support. Every user can join as many rooms as they like. There can be a 3D positional audio chat that mimics real voice and in addition to that users can have a walkie-talkie to talk to users that are out of reach. You can also define rooms that are just used to real-time data synchronization.
Voice solutions typically use a room or channel based approach where all users connected to the same room or channel can talk to each other. Some use-cases require users to be able to join multiple rooms at the same time. ODIN comes with native multi-room support. Every user can join as many rooms as they like. There can be a 3D positional audio chat that mimics real voice and in addition to that users can have a walkie-talkie to talk to users that are out of reach. You can also define rooms that are just used to real-time data synchronization.
Intrinsic data protection ODIN is completely stateless. The authentication works with a single token created by you per user and room that stores everything required for the service. This token is not stored anywhere in the ODIN infrastructure. Rooms are automatically created once the first user joins the room and are deleted once the last user left the room. There is no database in the background. ODIN does not collect or store any data at all.
ODIN is completely stateless. The authentication works with a single token created by you per user and room that stores everything required for the service. This token is not stored anywhere in the ODIN infrastructure. Rooms are automatically created once the first user joins the room and are deleted once the last user left the room. There is no database in the background. ODIN does not collect or store any data at all.
Real-time data synchronization ODIN allows developers to sync data per user and per room in real-time. Whenever something changes in this data-set, it’s synced with all other users connected to the same room in real-time. You can sync the players positions in real-time (i.e. geolocation in met averse applications) or a text-chat-history in a room with easy.
ODIN allows developers to sync data per user and per room in real-time. Whenever something changes in this data-set, it’s synced with all other users connected to the same room in real-time. You can sync the players positions in real-time (i.e. geolocation in met averse applications) or a text-chat-history in a room with easy.

Experience yourself

Download our samples and experience spatial 3D audio with friends, family and colleagues

Open Source

Download and test our PUN based multiplayer sample built with Unity. We provide all the source-code in our Github repository. The sample also features many scripts for audio effects like damping and general bookkeeping stuff.

Multiplatform Showcase

In this sample game, you run around a nice looking neighborhood and can talk to other players with 3D positional voice and a walkie-talkie in multiple channels. We also feature a web-based commander that you can use to interact with players directly from your browser.

FPS Shooter

A simple but fun old style FPS shooter on desert style maps. ODIN 3D positional voice is integrated so that you can talk to other players with voice or radio broadcast. Have fun!