| Name | Version | Updated | Category |
|---|---|---|---|
| Milan Sound-Demo | 1.0 | 06.12.1995 | ST Chipsound |
| Milanopoly | 0.61 | 15.03.2020 | Monopoly |
| Mile Game | 01.01.1986 | Card games | |
| Minefield | - | Minesweeper | |
| Minefield (Tanx) | 01.01.1992 | Battleships | |
| Minenfeld (Jüschke) | - | Minesweeper | |
| Minenfeld (Keller) | 1.2 | - | Minesweeper |
| Mini-Logo | 1.0 | 20.10.2000 | Esoteric programming languages |
| Mini-Mal | 1.05 | 26.06.1992 | Paint programs - Monochrome |
| Mini-OCR | 2.3 | - | Optical Character Recognition |
| Mini.PRT | 16.12.1990 | Printing programs | |
| MiniDat | 2.7 | - | Cardbox |
| Minigolf | 1.0 | - | Sport - Mini Golf |
| MiniMind | - | Mastermind | |
| Minimousepiano | 01.01.1989 | ST Chipsound | |
| Miniskat | 01.01.1987 | Card games - Skat | |
| Minitext | 5.0 | - | Editors - Oldies |
| Minitext II | 1.02 | 01.09.1992 | Editors |
| MiNTSetter | 4.0 | - | MiNT |
| Mirror | 0.0 | - | Puzzle game |
| MNEMOS | - | Languages - Vocabulary trainer | |
| Molecule | 1.0 | 01.12.1993 | Puzzle game |
| Molmasse | 1.01 | - | Science - Chemie |
| Mond-Krater und Landeplätze | - | Science - Astronomy | |
| Mondkugel | - | Science - Astronomy | |
| Money | 0.9 | - | Business simulation |
| Monitor Abschaltung | 1 | 21.05.1990 | Screen saver |
| MONOchrome | 1.0 | 22.03.1988 | Paint programs - Monochrome |
| Monopoly | 1.01 | 25.08.1988 | Monopoly |
| Morpion 3D | - | Tic Tac Toe | |
| Morse Master | 3.0 | 01.01.1992 | Morse code |
| Morsedekoder | - | Morse code | |
| Morsekurs | 2.1 | - | Morse code |
| Motodrom | - | Racing game | |
| Motor Massacre Hack | 2.0 | 17.08.2022 | Editor |
| Motorcycle | 01.01.1987 | Racing game - Motorrad | |
| Motosu | 0.95 Beta | 20.10.2024 | Taskbar/Start button |
| Move | - | Puzzle game | |
| Move it! | 01.01.1988 | Animation | |
| Mr. Dash | - | Skill - Boulder Dash | |
| Mr. Eliza | - | Fun - Talk | |
| Mrs Munchie | 1.40 | 01.01.1992 | Pacman |
| Ms.Pac. | 1.5 | - | Pacman |
| MSX Emulator | 0.10 | - | Emulators |
| MT32 Dis | 1.0 | 02.06.1990 | MIDI |
| MT32 Sys | 01.05.1990 | MIDI | |
| Mühle (Prestele) | 1.0 | - | Mühle |
| Muhwie (Chario-Player) | 1.11 | - | Video-Player |
| MultiBox | 1.0 | 10.04.1992 | Hypertext |
| Multifont | 0.39 | - | System fonts |
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.
