Welcome to id Software's Technology Licensing Program. If you're thinking about building your own 3-D engine or using a licensed engine for game development or any real-time 3-D application, this is required reading. It contains all of the information about what we have, what it costs, and who you need to contact to get started working with the most powerful gaming engines on the planet.

The informational links below are out of date as Quake III Arena has now been released under the terms of the GNU Public License. New licensing prices and information will soon become available.

• Technology Licensing Program
  Complete run-down on all of our licensing options.
  
  
• Printable Document
  All of the information from the Technology Licensing Website prepared in an easy to print, text-only format.
  
  
• Frequently Asked Questions
  FAQ list regarding Technology Licensing.
  
  
• Technology Downloads
  The one-stop-shop for all of the free tools and technology we offer. Check out game demos, updates, game and tool source, documentation and many other items related to our technology.