ODIN Platform

ODIN is a real-time communication and game server infrastructure platform by 4Players. It provides voice chat SDKs for all major platforms, game server hosting, and browser-based video conferencing.

Quick Reference

Use this guide to find the right reference for your task:

ODIN Voice

Cross-platform real-time voice chat SDK for games and applications.

Key Features: 3D spatial audio, noise suppression, echo cancellation, low latency, cross-platform (mobile, web, desktop in same room), data channels for custom game data.

Version Note: ODIN Voice 1.x and 2.x are not interoperable. All participants in a room must use the same major version.

Unity SDK

Real-time voice chat for Unity games and XR experiences. Supports v1.x (stable, Unity 2019.4+) and v2.x (beta, Unity 2021.4+).

• Reference: references/voice-unity.md
• v1.x docs: references/voice-unity-v1.md
• v2.x docs: references/voice-unity-v2.md
• Troubleshooting: references/voice-unity-troubleshooting.md

Unreal Engine SDK

Voice chat plugin for Unreal Engine. Supports v1.x (UE 4.26+) and v2.x (UE 5.3+).

• Reference: references/voice-unreal.md
• v1.x docs: references/voice-unreal-v1.md
• v2.x docs: references/voice-unreal-v2.md
• Troubleshooting: references/voice-unreal-troubleshooting.md

Web/JavaScript SDK

Browser SDK for real-time voice chat with WebTransport/HTTP3. Supports NPM and CDN.

• Reference: references/voice-web.md
• Advanced patterns: references/voice-web-advanced.md
• Audio processing: references/voice-web-audio-processing.md
• Framework integration (React, Vue, Angular): references/voice-web-frameworks.md

Swift SDK (OdinKit)

Voice chat for iOS and macOS apps. Requires iOS 9+/macOS 10.15+, Swift 5.0+.

• Reference: references/voice-swift.md

Node.js SDK

Server-side voice chat with native C++ bindings. For recording bots, AI voice assistants, server-side audio processing, and content moderation.

• Reference: references/voice-nodejs.md
• Audio patterns: references/voice-nodejs-audio.md

Core SDK (C/C++)

Low-level C API foundation for all ODIN Voice SDKs. For custom platform integrations or language bindings.

• Reference: references/voice-core.md
• v1.x docs: references/voice-core-v1.md
• v2.x docs: references/voice-core-v2.md

ODIN Fleet

Game server hosting and deployment platform with global infrastructure.

Key Features: Engine-agnostic architecture, automatic scaling, Docker and Steamworks image support, REST API and CLI for deployment automation, dashboard for monitoring/logging/backups.

• Reference: references/fleet.md
• Deployment patterns: references/fleet-deployment.md
• Matchmaking: references/fleet-matchmaking.md

Fleet CLI

Command-line tool for managing Fleet resources. Supports automation, CI/CD pipelines, and scripted deployments.

• Reference: references/fleet-cli.md
• Advanced patterns: references/fleet-cli-advanced.md
• CI/CD integration: references/fleet-cli-cicd.md

ODIN Rooms

Browser-based, decentralized video conferencing with end-to-end encryption. GDPR compliant.

Key Features: Audio/video calls, text chat, screen sharing, whiteboard, custom branding, self-hosted or cloud-hosted.

• Reference: references/rooms.md

Platform Fundamentals

Core concepts, authentication, pricing, and architecture that apply across all ODIN products.

• Fundamentals: references/fundamentals.md
• Integration patterns: references/integration-patterns.md
• Pricing details: references/pricing.md

Authentication

ODIN uses a two-level authentication system:

1. Access Key — API credential for generating tokens (server-side only, never expose to clients)
2. Room Token — JWT signed with Ed25519, used by clients to join rooms

CRITICAL: Never embed access keys in client code in production. Generate room tokens on a server.

Core Concepts

• Rooms — Virtual spaces where peers communicate
• Peers — Participants in a room, each with a unique peer ID
• Media Streams — Audio channels (microphone input/output)
• Data Channels — Custom binary/text data between peers

Documentation

• Main Docs: https://docs.4players.io/
• Voice SDK: https://docs.4players.io/voice/
• Fleet: https://docs.4players.io/fleet/
• Rooms: https://docs.4players.io/rooms/
• Discord: https://4np.de/discord