1. COR Entertainment, LLC ● Formed in 1999 ● Released Alteria in 2001 ● Released CodeRED: Battle for Earth in 2002 ● Sequel, the Martian Chronicles in 2003 ● First beta of Alien Arena in 2004 ● Incorporated in 2006 ● Four main developers ● Alien Arena is our current project

2. Alien Arena ● Based on open source code released by Id Software ● Beta released August 2004 ● Ported to Linux in 2005 ● Featured in PC Gamer and many other magazines ● Downloaded over 2 million times to date ● Many rendering, sound, and other advancements ● Active development continues ● Version 7.51 is latest

3. Alien Arena in 2004

4. Alien Arena in 2005

5. Alien Arena in 2006

6. Alien Arena in 2007

7. New Aliens for 2008!

8. Early stages of normalmapping

9. Using GLSL for the first time

10. Current rendering of martian

11. Remember this guy?

12. The influence of id Software ● Released source for Doom and Quake in 1999 ● Quake 2 in 2001, Quake 3 in 2005 ● Spawned many open source engines and game projects ● Many of these games venture outside of the FPS genre ● Id's influence is far reaching and positive on open source gaming

13. The advantage of open source ● Attracts developers, players and community ● Can help you solve immediate and long term issues with your game ● Provides potentially longer longevity and vitality to a project ● The sharing of knowledge can build camaraderie among fellow game devs ● Open source games can advance at a quick rate

14. Keeping up with the Joneses... ● Keeping up with the tech of commercial games is a difficult challenge ● Open source games are closing the gap as gaming tech plateaus ● The sharing of information is a major advantage of open source games ● Quality artwork often requires making tough choices ● The key is finding the right balance and consistency that fits your goals

15. Keys to building a community ● Use open source/free tools to build assets ● Write your own editing tools when necessary ● Release early, release often! ● Don't release broken games if possible ● Keep an organized development structure and cycle ● Address all aspects of your game

16. Conclusion ● Gamers can be quite judgmental ● Have a tough skin, and listen to the critics ● There are ways you can make open source gaming into more than just a hobby ● Major game companies are taking notice of free and open source games ● The gaming industry is massive, and open source can be a big part of it