EGS
From CPCWiki - THE Amstrad CPC encyclopedia!
Elmsoft Game Service or EGS (Elmar Krieger) from Austria programmed several demos and a few games on CPC and Nintendo Gameboy for Titus Software. Furthermore, Elmar published some tech articles in CPC Amstrad International and Rundschlag fanzine.
Lifelong email address is elmar(a)yasara.org.