| Name | Version | Updated | Category |
|---|---|---|---|
| ST Slot | - | Gambling - Slot Machine | |
| ST Sorry | 4.0 | 01.01.1993 | Board games |
| ST-Calc | 1.2 | 01.01.1987 | Spread sheet |
| ST-Designer | 2.1 | 06.06.1992 | Paint programs - Monochrome |
| ST-Init | 1.2 | 31.01.1992 | Configuration |
| ST-Mal | 4.1 | 01.01.1991 | Paint programs - Monochrome |
| ST-Memory | 01.01.1987 | Card games - Memory | |
| ST-Muse | 01.01.1995 | MIDI - Algorithmic music | |
| ST-Roulette | 2.0 | - | Gambling - Roulette |
| ST-Up | 1.5 | - | Programmstarter |
| STAD to RCS | 1.1 | 01.01.1991 | Development |
| Stagger | 1.2 | 08.04.1987 | Othello/Reversi |
| Stammbaum | 2.50 | 05.04.1992 | Genealogy |
| Star Command Hack | 2.0 | 17.08.2022 | Editor |
| Star Ref | - | Basic - GFA - Tools | |
| Star Trek: The Klingon War | 04.04.1993 | Strategy - Star Trek | |
| Starkiller | 01.01.1989 | Adventures - Text | |
| Startext | 2.8 | 18.04.1993 | Word processor |
| StarTrack | 2.22 | - | MIDI Sequencer |
| StartUp | 3.5 | 01.01.1992 | Bootmanager |
| Starwing | 2.01 | 12.07.1992 | Business simulation |
| States and Countries | 01.01.1992 | Education - Geography | |
| STatiSTics | 1.36E | - | Statistics |
| Statistik | 1.1 | 01.01.1987 | Statistics |
| Stausi | - | Fun | |
| STDOSWIN | - | Text converter | |
| STe DMA Auto Player | 1.0 | 12.06.1991 | Audio player - Samples |
| Stein | 1.00 | 01.01.1990 | Puzzle game |
| Sternenatlas (Sky-2000) | - | Science - Astronomy | |
| Sternzeit | 01.01.1991 | Science - Astronomy | |
| Sticker | 1.0 | - | Printing - Labels |
| STiK DevKit | 1.09 | - | Basic - GFA - Libraries |
| STIS | 2.0 | 01.01.1994 | Auto-Stereogramme |
| STORM | - | Action - Shoot'em Up | |
| STplan | 1.2 | - | School - Class schedule |
| STrans | 2.13 | 01.01.1991 | Dictionary |
| Stratefy | - | Calendar | |
| STresor | 11.08.1990 | Security | |
| Strip Pontoon | - | Gambling - Blackjack | |
| STrivia! | 01.01.1987 | Quiz | |
| STScheck | 3.0 | 07.11.1987 | Finances - Bank |
| Studio | 2.41 | - | Paint programs - Monochrome |
| STudio | 01.01.1987 | Paint programs - Monochrome | |
| Stumbling Blocks | 01.01.1989 | Tile-base game - Pentomino | |
| Stundenbuch | - | Finances - Work | |
| STundenplan-Manager | - | School - Class schedule | |
| Sturzflug in die Mandelbrotmenge | - | Fraktale | |
| Stützenbemessung | 1.13 | 01.01.1991 | Building |
| STwatch | 1.05a | 13.03.1994 | Clock - Alarm |
| Suchsets | 1.2 | - | Word processor - Signum |
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.
