| Name | Version | Updated | Category |
|---|---|---|---|
| Set Clock | 1.0 | - | Clock - Time setter |
| Set Date | 4.0 | - | Clock - Time setter |
| SET_TEXT | - | System extensions | |
| SetLQ500 | 3.0 | 24.04.1991 | Printer - Tools |
| SETTIME | 1.0 | - | Clock - Time setter |
| Setz ab | 1.3 | 30.03.1992 | Tetris |
| Shanghei | - | Mahjong Solitaire | |
| Shapes | 1.1 | - | Graphic and animation |
| Sharks | 01.01.1991 | Quiz - Hangman | |
| Sherlock Holmes | 4.3 | 08.02.1993 | Board games |
| Shibit | - | Dice games | |
| Shift | 01.01.1991 | Card games - Memory | |
| Ship Combat | - | Battleships | |
| Shogun | - | Board games | |
| Shorterm | 1.1 | 01.01.1987 | Terminal |
| Shotgun | 21.09.2024 | Action | |
| Shotsim | 01.01.1992 | Simulation | |
| Show It! | 1.4 | 01.01.1989 | Slideshow |
| Show Me | - | Viewer | |
| Show PIC/Dia-Show | - | Slideshow | |
| Show512 | - | Viewer | |
| Sidekick | 2.07 | 05.02.1991 | Multi-ACCs |
| Sieben Türme II | 01.01.1993 | Puzzle game | |
| Siebzehn und Vier | - | Gambling - Blackjack | |
| Siegfried's Bruchrechnen I | - | Maths - Learning | |
| Silent Diashow | 2.0 | 01.01.1992 | Slideshow |
| Silverball | - | Graphic and animation | |
| Sim City Money Hack | 2.0 | 17.08.2022 | Editor |
| SIM_EQ | 1.0 | 28.03.1989 | Maths |
| Simple Draw | 3.4 | - | Paint programs - ST Low/High |
| SINGLE-SkaT | 01.09.1988 | Card games - Skat | |
| Sketch 2 | 2.3 | 01.01.1994 | Fun - Jokes |
| Skooter | 1.1 | - | Labyrinth |
| Skorápy | 01.01.1994 | Puzzle game | |
| Slide | 1.2 | - | Puzzle game |
| Slider | - | Puzzle game | |
| Slider (Antic Publishing) | 01.01.1988 | Verschiebepuzzle | |
| Sliding Block Puzzle | - | Puzzle | |
| Sliding Puzzler | - | Verschiebepuzzle | |
| SlingshoT | 1.02 | 01.01.1991 | Programmstarter |
| Slot | 14.05.1994 | Gambling - Slot Machine | |
| Slug Blast (game demo) | - | Skill - Plattform | |
| Small Block Editor | - | Sprite editor | |
| Small View | 1.4 | 18.02.1991 | Viewer |
| Smiley | 1.6 | 15.04.1992 | Skill - Qix |
| Snake (Berger) | 2.5 | - | Skill - Snake |
| Snake (Schneider) | 1.1 | 15.01.1992 | Skill - Snake |
| Snakes & Ladders | - | Board games | |
| Sno-Fite | - | Strategy - Artillery | |
| Soft-Wobbler | - | Science - Electronic |
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.
