ioquake3.org is the de-facto standard in Quake 3 technology post-opensource release. Others base themselves on the hard work of the hundreds who have contributed to ioquake3. Tremulous, World of Padman, Urban Terror. All use ioquake3.org for many reasons.
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Mod SDK & Community
Built a game for ioquake3 and want to support mods? Try mod.io, a cross-platform mod SDK created by ModDB which makes it easy to get a mod community up and running in-game. Currently seeking games to integrate and promote
