| Name | Version | Updated | Category |
|---|---|---|---|
| Adressbüchle | 2.0 | 01.01.1988 | Address database |
| Adressen.GFA | 2.3 | - | Address database |
| ADRESSJB | 1.8 | 01.01.1996 | Address database |
| Adresswriter | 1.4 | 01.01.1990 | Address database |
| ADS-Editor | 0.98 | - | MIDI Sample Editor |
| AdvaCalc | - | Pocket calculators | |
| Adventure Werkstatt | - | Game development | |
| Adventure-Kurs | - | Game development | |
| AE-Menu | 05.04.1992 | Printing - Labels | |
| AESLIB plus | 2.0 | - | Basic - GFA - Libraries |
| AI Doctor | 01.07.1990 | Self diagnosis | |
| Air-Rifle | 1.0 | - | Simulation |
| Airfleet Woodlouse Game | 01.01.1989 | Pacman | |
| Airline-Manager | 1.04 | 15.02.1990 | Management - Air lines |
| Akronyme | 1.0 | 01.03.1993 | Abbreviations |
| Aktienstar | 2.0 | - | Stock market |
| Album '92 | 1.5 | - | Paint programs - Monochrome |
| Alert | 22.07.1991 | Programmstarter | |
| Alert Boxen Generator | 0.40 | 13.10.1988 | Development |
| Alert Help | 2.2.1 | 11.03.2020 | Development |
| Alfreds Kistenlager Schieberei | 0.19 | - | Sokoban |
| Alive | - | Game of Life | |
| Alpha Snake | - | Education - Spelling | |
| Alta Lista | 2.6 | 08.10.1999 | Internet - Website tools |
| Alternate User Editor | 4.01 | - | Mailbox - Tools |
| Amok | 1.00 | - | Paint programs - Monochrome |
| Analy-ST | 2.04 | - | Maths |
| Anarcho Ride | 1.04 | 07.10.2016 | Racing game |
| Anlagen-Verwaltung | 01.01.1987 | Stock market | |
| Anno 1700 | 05.11.1989 | Business simulation | |
| Another Chaos-Plotter | 01.01.1991 | Fraktale | |
| Ansipaint | 1.0 | - | ASCII Art |
| Anucsoft Coder | 1.17 | - | Security |
| Aorist (Griech./Altgriech.) | 1.1 | 01.01.1990 | Languages - Vocabulary trainer |
| Apple Mountains (Friedhoff) | - | Fraktale | |
| ARC-Shell | 1.2 | 02.01.1990 | Archivers - Shells |
| Archive Lister | 1.00 | 09.03.1991 | Archivers - Shells |
| Arena Earth | 01.01.1990 | Action - Shooting Gallery | |
| Ares | 01.01.1990 | Anti virus | |
| Argon 4 | - | Action - Shoot'em Up (Vertical) | |
| Arthur XP | 2.08b382 | 31.07.2005 | Dictionary |
| ArtiST/Artus | 03.11.1993 | Graphics | |
| ArtList | 1.0d | - | Literaturverwaltung |
| Artus | 1 | 11.02.1992 | RPG |
| ASCII | 1.22 | 01.01.1991 | ASCII table |
| ASCII-Code-Viewer | 0.99 | 01.01.1993 | ASCII table |
| ASCII-View | 3.80 | 01.01.1991 | Document viewers |
| ASM63 + Shell | 2.1 | - | Cross development - Assembler |
| Assistant Chef | 0.9 | - | Cooking |
| Asteroidia | 01.01.1995 | Arcade - Asteroids |
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.
