| Name | Version | Updated | Category |
|---|---|---|---|
| Datenordnungsprogramm | 2.00 | - | Text sorter |
| Datobert | 3.0 | - | Chart graphics |
| Datum | 1.52 | 01.08.1990 | Personal organizer |
| DDD-Laby | - | Labyrinth | |
| DDD5-Editor | 1.0 | 16.02.1992 | Editor - Rythmus |
| DeagaMono | 1.0 | - | Viewer |
| DeArc | 2.0 | - | Archivers - Shells |
| Def2Lst | 1.4 | 01.01.1990 | Basic - GFA - Tools |
| Degas In | 01.01.1988 | Graphic converters - Single formats | |
| Delmpaint | 4.0b | - | Paint programs - Falcon only |
| Delta | 1.0 | 01.01.1987 | Puzzle game |
| Demoprogramme | 28.01.1987 | Graphic | |
| Denise | 01.08.1986 | Paint programs - Monochrome | |
| Denkdran | 1.0 | - | Personal organizer |
| Der Detektor | 1.0 | - | Disk tools - File serch |
| Der kleine Professor | 2.10 | 20.10.1994 | Maths - Learning |
| Der Merker | - | Literaturverwaltung | |
| Der Überlebenskampf | - | Action - Arcade | |
| Der Zaubertrank | 01.01.1989 | Adventures - Text | |
| Desert Drain | 1.52 | - | Disassembler |
| Deskmaker | 2.2 | 01.12.1991 | Configuration |
| Desktip | 17.04.1990 | Desktop configuration | |
| Devastator | - | Action - Shoot'em Up | |
| DGDB (Color) | - | Action - Gauntlet and clones | |
| DGDB (Mono) | - | Action - Gauntlet and clones | |
| DGDB 2 | - | Action - Gauntlet and clones | |
| DGEM | 1.2C | 26.05.2018 | RPG (3D) |
| Dia-Manager | 1.04 | 17.07.1989 | Photography |
| Dia-o-mat | - | Slides | |
| Diaschau | 2.01 | 21.03.1993 | Slideshow |
| DICTION | A | 18.02.1990 | Spell checker |
| Die Erde | - | Science - Astronomy | |
| Die Fugger | 01.01.1987 | Business simulation | |
| Die Fugger (PD) | - | Business simulation | |
| Die Weltraum Odyssee | 01.01.1989 | Adventures - Grafik | |
| Differential | 1.03 | - | Maths |
| Digiuhr ST | - | Clock - Time setter | |
| Directory-Analyser | 3.0 | - | Disk tools - Directory |
| DirList | 1.4 | - | Disk tools - Directory |
| Disc-Single-Longplay | 2.50 | 01.04.1992 | Music database |
| Discothek | 4.11 | - | Music database |
| Disk Checker | 1.2 | - | Disk tools |
| Diskette | - | Disk tools - Disk drives | |
| Disketten-Etiketten-Drucker | 1.1 | 01.01.1988 | Printing - Labels |
| Disketten-Etiketten-Drucker 1990 | - | Printing - Labels | |
| Disketten-Inhaltsverzeichnis | - | Printing - Labels | |
| Disketten-Label-Druckerei | 1.5 | - | Printing - Labels |
| Diskkatalog | 6.05 | - | Disk catalog |
| Disklabeldrucker | 1.0 | - | Printing - Labels |
| Diskmonitor | 1.0 | - | Disk tools - Monitor |
GFA-Basic
GFA Basic was the most popular programming language dialect for the Atari ST. Developed by Frank Ostrowski and distributed by GFA Systemtechnik, GFA Basic quickly established itself with an ecosystem of tools, books, and libraries. The GFA Basic Editor is a modernized version with many new commands for multitasking systems.
