| Name | Version | Updated | Category |
|---|---|---|---|
| Makeindex (Münch) | 01.01.1991 | TeX | |
| Makin'Aiken | 01.01.1988 | Children's programs | |
| Malefiz | 01.01.1988 | Board games | |
| Malen | 1.0 | - | Paint programs - Monochrome |
| Malen TT-High | - | Paint programs - Monochrome | |
| MANDELST | - | Fraktale | |
| MandelToy | 0.6b | 01.01.1990 | Fraktale |
| Manga Puzzle | 1.2E | 28.03.2015 | Puzzle |
| Manipulator | 2.8 | - | Effects |
| Mariant | 1.0 | 25.11.1993 | Card games - Patience |
| Maskengenerator | - | Basic - GFA - Tools | |
| MaskGen | 1.0 | 03.10.1991 | Basic - GFA - Tools |
| Masse | 1.2 | - | Science - Physics |
| Master Copy | - | Disk tools - File copy | |
| MasterCub | 1.0a | 01.01.1996 | Tetris |
| Matrix | - | Maths | |
| Mau-Mau | 4.3 | - | Card games |
| Maus Paint+ | 1.00 | - | Paint programs - Monochrome |
| Mausi | - | Mouse | |
| MDEC | 1.14 | - | Amateur radio |
| Meg | 1.5E | 26.10.2024 | News & Email |
| Mega-Dash | 01.01.1988 | Skill - Boulder Dash | |
| MegaColor | 1.0 | - | Paint programs - Color |
| MegaFakt | 4.26 | - | Finances - Invoice |
| Megamix | 01.01.1990 | Card games - Memory | |
| MegaQuiz (Gaebler) | - | Quiz | |
| Meik's Game | - | Skill | |
| Meiose | 2.0 | 01.01.1991 | Science - Biology |
| MEKC | 0.99 | 01.01.1993 | Pocket calculators |
| Memo | 01.07.1988 | Senso | |
| Memory (Gustavsson) | 01.01.1995 | Card games - Memory | |
| Memory (Schneider) | 1.2 | 02.04.1992 | Card games - Memory |
| Memory Challenge | 01.01.2021 | Card games - Memory | |
| Memosound | - | Senso | |
| Mendel | 1.01 | 01.08.1990 | Science - Chemie |
| Menü-Edit | 1.0 | - | Basic - GFA - Tools |
| Menue | - | Basic - GFA - Source Codes | |
| Messier Object Search | 1.2 | - | Science - Astronomy |
| Messwerk | 1.1 | 28.05.1993 | Data analysis |
| MEZ/MESZ | 04.11.1994 | Clock - Time setter | |
| MIDI Dialog | - | Communication | |
| MIDI Effect | - | MIDI effects | |
| MIDI Mouse Music | 1.1 | 01.01.1994 | MIDI - Algorithmic music |
| Midi Music Maker | 2.26 | - | MIDI - Player |
| Midi-Maze Editor | - | Editor | |
| MIDI-Spectra | 1.5 | 01.01.1993 | MIDI tools |
| MIDI-Test | 07.10.1991 | MIDI tools | |
| Midimaze Editor | 1.4 | - | Editor |
| Mike's Fill Editor | 3.0 | 02.04.1993 | Pattern editor/generator |
| Mikrodraw | - | Paint programs - Monochrome |
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.
