GAME · 2003
Call of Duty
- Developer
- Infinity Ward
- Publisher
- MediaQuest Holdings, Aspyr
- Platforms
- N-Gage, Microsoft Windows, macOS, PlayStation 3
10 archived facts 2 topics 1 source Last reviewed Sep 2026
9 Facts From the Development of Call of Duty
- #001
Development of Call of Duty began in April 2002 under Chief Creative Officer Vince Zampella, and the team expanded to 27 members by May 2003.
- #002
Call of Duty was built on an enhanced version of the id Tech 3 engine used for Quake III Arena, along with an in-house skeletal animation system called Ares.
- #003
Infinity Ward aimed to make Call of Duty a World War II game that emphasized squad-based play with intelligent teammate assistance in large-scale battles, and the team extensively researched the era's weapons, artillery and vehicles for authenticity; the project had a budget of $4.5 million.
- #004
Call of Duty's development team built an artificial intelligence pathfinding system called "Conduit", which was tightly integrated into the squad-based single-player campaigns and allowed the AI to suppress enemies with cover fire and clear obstacles such as fences and windows.
- #005
The AI in Call of Duty was designed to flank opponents, bank grenades and move between cover points.
- #007
Call of Duty's multiplayer modes were tailored to please modders, and lead designer Zied Rieke clarified that gameplay and modes were written in script, making it extremely easy for players to make their own modifications to Call of Duty multiplayer.
- #008
The music for Call of Duty was composed by Michael Giacchino and first released in 2003 as the Call Of Duty Official Soundtrack Sampler CD, which was part of the game's pre-order from EB Games in Europe.
- #009
Call of Duty's music reached the United States in 2005 through the Deluxe Edition, which also included Call of Duty: United Offensive.
- #010
Justin Skomarovsky was commissioned to write an additional composition, "Age Of War", for the intro cinematic that leads into the "Call Of Duty" main title.
Sources & editorial notes
Sources for the entries on this page
- Wikipedia Call of Duty (video game) — Wikipedia
Information from external sources is independently selected, consolidated and edited by Arka Evren. Sources are listed for verification and further reading. Encyclopedia text is used under its licence (CC BY-SA). How we work