Here is a list of all of the Fanmade AGI Games I could find to date:

Game Title	Author
Acidopolis	Neutron
Agent 0005	Adam McCoy
AGI Piano	Unknown
Botz	Nat Budin
CPU-21	Luke Roberts
Dashiki	John Collier
Dashiki (256)	John Collier
Dave's Quest	David Smith
Escape from the Desert	Nuno Costa
Escape Quest	Rainer De Temple
F&$^ Quest	Richard Eter
F$%( Quest II: Romancing the Bone	Rich Eter and Heywood Jablowmey
Goodman	Slavei Karadjov
Go West, Young Hippie	Jeremiah Kauffman
The Grateful Dead	John Collier
Hero's Adventure	John Collier
Jack and Julia: Vampyr Hunter	Kenneth Bernholm
Jeff's Quest	Jeff Stewart
Jen's Quest	Joel McCormick
The Legendary Harry Soupsmith	Magnus Kristiansen
The Legend of Shay-Larah (formerly Prinse Quest)	Jonathan & Lawrence Beckwith
MD Quest	Unknown
Napalm Quest	Marshall Hahn
The New Adventures of Roger Wilco	Unknown
Operation: Recon	Randy Dykstra and Nat Budin
The Quest for Piracy	Ian C. Smith
Ralph's Quest	Meezo
Residence 44 Quest	Rinze de Laat & Jinwo Verluys
The Ruby Cast	Lance Ewing
Space Trek	Derek S.
The Lost Planet	Nick Hudsen
Time Quest	Chad Goulding
URI Quest	Jeff Carroll

 
If you are looking for a game that is not here, e-mail me and I will see if I can help you find it.
Enjoy!