AGT

File Format
Name	AGT
Ontology	Electronic File Formats Interactive Fiction AGT ; ; ;
Extension(s)	.d$$, .da1, .da2, .da3, .da4, .da5

AGT (Adventure Game Toolkit) is an Interactive Fiction development system written by David Malmberg. It is based on Mark Welch's GAGS system.

Software

AGiliTy (cross-platform, open source, IF Archive): a cross-platform interpreter for all version of AGT game files
IF Archive: AGT Programming: AGT compiler and documentation
Gargoyle

File Format
Name	AGT
Ontology	Electronic File Formats Interactive Fiction AGT
Extension(s)	`.d$$`, `.da1`, `.da2`, `.da3`, `.da4`, `.da5`