Third Room

At a glance

• Editor score
  6.8 / 10
• Pricing
  Open source
• Best for
  Privacy-focused developers building 3D worlds
• Paid from
  Free
• Facts checked
  20 Sep 2026

• Where it wins

  • End-to-end encrypted Matrix communication
  • Spatial and positional audio for immersive collaboration
  • Open-source self-hosting with Unity and glTF support

• Where it doesn't

  • Requires self-hosting on a static web server
  • Focused on immersive 3D rather than conventional meeting tools
  • Mobile app availability and screen sharing are not part of the listed platforms

Our verdict on Third Room

Third Room is an open-source social platform for communication and collaboration in immersive 3D worlds. It is designed for developers, communities, event organizers, and teams creating virtual meeting rooms or interactive spatial experiences. Users can join or create public and private worlds through desktop browsers or XR devices, while Matrix provides the real-time communication layer. End-to-end encryption, guest access, spatial audio, and support for both public and private spaces make it a fit for privacy-focused groups that want more than a conventional video meeting interface.

Its strongest distinction is the combination of decentralized communication and 3D content creation. Third Room supports Matrix, glTF-based environments, Unity scene export, and WebSG JavaScript and WebAssembly scripting. That gives developers several routes for building or adapting interactive spaces, while spatial and positional audio can make conversations depend on location within a world. The platform is better suited to teams with 3D design or development capability than to organizations looking for a ready-made meeting room with a broad set of standard collaboration controls.

Pricing is straightforward: Third Room is open source, with self-hosting on a static web server as part of its published feature set. That model can give technically capable organizations control over deployment and communication infrastructure, but it also places more responsibility on the team operating the environment. Choose Third Room for encrypted Matrix-based spaces, programmable worlds, and Unity or glTF workflows. Choose an alternative if your priority is a conventional meeting experience centered on standard presentation and meeting-management features.

Your product? Our editors can test Third Room in depth and publish a review, labelled as paid · from $149/mo →

Third Room pricing

Third Room fact sheet

Third Room integrations

Third Room lists 4 integrations on its own site.

• Matrix
• Unity
• glTF
• WebSG

Alternatives to Third Room

• TopiaA flexible virtual meeting space with spatial interaction, event tools, and broad integrations.9.3
• WorkAdventureA flexible virtual office and event space with strong collaboration integrations.9.2
• BAWES UniverseAn open-source virtual world for teams that need persistent, programmable meeting spaces.8.9

See all Third Room alternatives →

Featured on iTechGuides

Third Room is listed in our Virtual Meeting Room Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update