# ODIN

> ODIN is a real-time platform by 4Players for in-game and in-app voice chat, dedicated game server hosting, and AI audio intelligence. Built on 25+ years of multiplayer infrastructure heritage from 4Players GmbH (the German team behind 4Netplayers and TeamSpeak). Native SDKs for Unity, Unreal Engine, Web (TypeScript / JavaScript) and Apple Swift. ODIN powers communication and infrastructure for tactical FPS games (Gray Zone Warfare), browser-based metaverse platforms (RaveSpace), enterprise XR (BMW, HOLOGATE), and live virtual events.

ODIN's products are designed to be used independently or as an integrated stack. Key technical differentiators: 3D spatial / proximity voice with audio occlusion, sub-50 ms latency on 20+ global edge regions, GDPR-compliant European hosting, no per-Windows-server surcharge, no egress / traffic / IP fees, and engine-level integration (not a plugin layer on top of a generic VoIP API).

## Products

- [ODIN Voice — Voice Chat SDK](https://odin.4players.io/voice-chat/): 3D spatial voice chat SDK with proximity audio, occlusion and engine-level integration. Native SDKs for Unity, Unreal Engine 4 / 5 (Blueprints supported), Web (vanilla JS), Apple Swift, C / C++ and Node.js. Used by MADFINGER Games for Gray Zone Warfare (72,500 concurrent voice users at peak), RaveSpace, BMW Group, HOLOGATE.
- [ODIN Fleet — Game Server Hosting & Management](https://odin.4players.io/fleet/): Managed dedicated game server hosting with global deployment, matchmaking integration (Nakama, AWS GameLift FlexMatch, custom matchmakers), Docker-native, persistent storage, DDoS protection, CLI / API / Dashboard. Up to 85% lower TCO than AWS / Azure / GCP for stateful game servers. Both Linux and Windows supported (no Windows surcharge).
- [ODIN Cortex — AI Audio Intelligence](https://odin.4players.io/cortex/) (currently in beta, not generally available): Real-time transcription, hate-speech and toxicity detection, meeting summaries, serverless functions and event webhooks. Designed to be triggered from ODIN Voice rooms.

## Pricing

- [Pricing](https://odin.4players.io/pricing/): Pay-as-you-go for variable workloads, flat monthly tiers for predictable workloads. Free tier available for every product. No egress / traffic / IP / Windows-server surcharges.

## Solutions by industry

- [Gaming](https://odin.4players.io/solutions/gaming/): Voice chat, dedicated server hosting and matchmaking for multiplayer games on Unity, Unreal, custom engines.
- [Social Platforms & Communities](https://odin.4players.io/solutions/social/): Real-time voice for dating apps, creator platforms, online communities and live events.
- [VR & XR](https://odin.4players.io/solutions/xr/): Spatial voice chat with occlusion for VR / AR / XR applications. Used by BMW Group, HOLOGATE.
- [Education & Training](https://odin.4players.io/solutions/education/): GDPR-friendly virtual classrooms, eLearning and enterprise-training voice infrastructure.
- [Defense & Public Sector](https://odin.4players.io/solutions/defense/): Sovereign, mission-critical real-time voice — deployable on-premise, in private cloud or fully air-gapped.

## Customer case studies

- [MADFINGER Games — Gray Zone Warfare](https://odin.4players.io/showcases/madfinger-games/): Tactical FPS on Unreal Engine 5 with native Wwise integration, proximity voice and radio communication. 72,500 concurrent voice users at peak.
- [RaveSpace](https://odin.4players.io/showcases/ravespace/): Browser-based 3D virtual events for Deloitte, Samsung, Volkswagen and Deka. Sub-50 ms spatial audio in the browser via the ODIN Web SDK.
- [Armative Studios — Steel Aces](https://odin.4players.io/showcases/steel-aces/): Tactical tank multiplayer game built on ODIN Fleet × Nakama for fair, scalable matchmaking infrastructure.

## Documentation & open-source SDKs

- [Developer documentation](https://docs.4players.io/voice/): Getting-started guides, SDK reference and API documentation for every supported platform.
- [GitHub: 4Players](https://github.com/4Players): Open-source SDKs and demo projects (odin-sdk, odin-sdk-unity, odin-sdk-unreal, odin-unreal-demo).
- [ODIN on Unreal Fab](https://www.fab.com/listings/79d0a208-78e8-4bd7-9214-36f6cc190da2): Marketplace listing for the Unreal SDK (4.8 / 5 with 7 reviews as of May 2026).
- [ODIN on itch.io](https://4players.itch.io/4players-odin): Standalone demo project.

## Company

- [About ODIN](https://odin.4players.io/company/about_us/): Team and 25+ years of real-time infrastructure heritage at 4Players GmbH.
- [Contact](https://odin.4players.io/company/contact_us/): Sales, customer success and support.
- [Partner program](https://odin.4players.io/become_partner/): Development, technology, distribution and white-label partnership tracks.
- [Partner gallery](https://odin.4players.io/partners/): Current technology and integration partners.
- [Blog](https://www.4players.io/blog/): Engineering deep-dives, release notes and case-study deep-reads.