Built on top of the SmartFoxServer 3 Buddy List system, this demo lets users manage a contact list and place one‑to‑one voice calls to online buddies, complete with call invitations, text chat, and mute controls.
It demonstrates the full audio workflow: initializing the audio subsystem, starting, stopping and muting audio streams, and reacting to the incoming stream events. Live audio data (per‑channel dB levels, peak, mute state, and network delay) is displayed through an on‑screen audio meter.
For more information, check our in-depth tutorial on the SmartFoxServer 3 documentation website.
SmartFoxServer is a comprehensive platform for rapidly developing multi-user applications and games with Godot, HTML5, iOS, Android, Java and more. It comes with an extremely rich set of features, an impressive documentation set, tens of examples with their source, powerful administration tools, an included free 100 CCU license and a very active support forum.
Born in 2004, and evolving continuously since then, today SmartFoxServer is the leading middleware to create large scale multiplayer games, MMOs and virtual communities, thanks to its simplicity of use, versatility and performance. It powers hundreds of projects all over the world, from small chats and turn-based games to massive virtual worlds and realtime games. Learn more on the SmartFoxServer website.
Main SmartFoxServer features
SmartFoxServer 3 expands the capabilities of its predecessor (SmartFoxServer 2X) with a host of important new features, support for the latest Java runtime, improved performance, new API and management tools:
- Built on Java 25 LTS, leveraging the latest Java features for performance and scalability
- Proprietary TCP/UDP socket engine with new architecture supporting virtual threads and multiple UDP channels
- Simplified architecture, with virtual threads taking care of scalability complexity
- Improved protocol: less overhead and more efficient serializer providing even higher throughput than its predecessor
- Low-latency, multi-channel reliable UDP implementation, providing both reliable/ordered and unreliable/ordered options, in addition to raw UDP
- Multi-language server-side Extensions (Java / Kotlin / Scala / Groovy), with new sync/async processing option
- Advanced class loading mechanism that avoids dependency conflicts between Extensions and relative .jar libraries
- HRC system for transparent reconnection of unstable clients
- BlueBox add-on for firewall and proxy traversal
- Flooding filter with auto-kick / auto-ban functions
- Customizable bad words filter with auto-kick / auto-ban functions
- Real-time live audio streaming allowing in-game chats, messenger type applications and more
- Public and private chat messaging; moderation support (kick, ban)
- Server-side variables
- Game API for match-making
- Game spectators support
- Advanced Buddy List system with black-list, permissions, offline buddy variables, etc.
- Invitations and challenges system
- Special MMO API for "Area of Interest"-based users proximity notification
- Web-based administration dashboard with live metrics, persistent performance history and advanced configuration options
- Embedded web server
Supported platforms
- All platforms supported by Godot
Supported OS
- Windows
- Linux/Unix
- macOS (13+)
Documentation
Changelog for version v1.0.0
No changelog provided for this version.