Christoph Oelckers (Graf Zahl)

Christoph Oelckers, known more often by his screen name of Graf Zahl, is a source port programmer who has contributed significantly to the ZDoom project, including development on his own fork of the codebase known as GZDoom, which is distinguished for its advanced rendering engine. He played a critical role in the development of DECORATE from its initial restrictions as a simple method for creating static decor objects into the fully featured content definition language which now exists.

2003

 * 2 lost levels
 * The Transformer

2004

 * Community Chest 2

2005

 * GZDoom

2006

 * The ZDoom Community Map Project "Take 1"
 * Mapping, scripting
 * The Monster Resource WAD

2007

 * Knee-Deep in ZDoom
 * Secondary mapping on Z1M7, coding

2008

 * Caverns of Darkness patch for ZDoom

Trivia

 * "Graf Zahl" is the German name of the character from .