| Programm | Role | Version | Datum |
|---|---|---|---|
| 'Nam 1965-1975 | Programmierer | 1991-01-01 | |
| Subbuteo | Programmierer | 1990-01-01 | |
| Scapeghost | Programmierer | 1989-01-01 | |
| Tetris | Programmierer | 1988-01-01 | |
| The Worm in Paradise | Programmierer | 1988-01-01 | |
| Tetris (Mirrorsoft) | Programmierer | 1987-01-01 |
