RedDwarf Server

Horizontally scalable application server for low latency applications such as online games, virtual worlds, and social networking applications.  It is the official community fork…

GPL2
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Firebase

Multiplayer game server. It’s fast, efficient and ready for rapid development. Firebase is open source and developed from scratch by Cubeia Ltd for developers world-wide….

AGPL3
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Player.IO

Player.IO makes it easy and fun to build scalable web games by providing easy to use services for game developers: BigDB Hosted Multiplayer Service Error Logging QuickConnect Player.IO…

Commercial
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Red5

Open Source Flash Server written in Java that supports: Streaming Video (FLV, F4V, MP4) Streaming Audio (MP3, F4A, M4A) Recording Client Streams (FLV only) Shared…

LGPL
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Mesmotronic Multiuser Server

Mesmotronic Multiuser Server is the real-time server solution, enabling you to create multiuser applications and multiplayer games using AS3.

Commercial
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ElectroServer

Powerful socket-server that facilitates multiplayer game development. Leveraging the latest in high-quality open source frameworks, ES achieves unprecedented performance and scalability. ES has been load-tested to…

Commercial
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SmartFoxServer

Comprehensive platform for rapidly developing massive multi-user applications and games with Adobe Flash/Flex/Air, Java, Android, .Net, Unity3D, Silverlight, Apple iPhone etc. It comes with a…

Commercial Free
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OpenSpace

OpenSpace is part of the SmartFoxServer platform for multiplayer games and has the following features: Engine and framework for rapid development of multi-user virtual worlds and MMO communities;…

Commercial
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