Arianne - http://arianne.sourceforge.net Arianne is a multiplayer online games framework and engine to develop turn based and real time games.
Linux Game Development Center - http://lgdc.sunsite.dk Resources for game development on Linux, FreeBSD, and other open platforms.
Glutamine: The Game Tool Chest - http://gtc.seul.org/ C library for networked, 3D interactive applications. Documentation, related projects, source, and binaries.
Simple DirectMedia Layer - http://www.libsdl.org A cross-platform multimedia library designed to provide fast hardware access.
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