- Hardrider (code crack sysop 'THE ELECTRIC CO.', early92)
- Hornet (code crack, later Alcatraz Entertainment Software)
- PGCS (gfx, later Alcatraz Entertainment Software)
- Dead Sector
- Metalwar (code crack)
- Red Storm
- Studio 3
Avenger was a swiss-based illegal group, doing cracks.
- French coder Funky joined Hexodus in january. Avenger died in 1990, and their members joined Trilogy, Brainstorm and Alcatraz Entertainment Software.
- INSTRUMENTS OF DARKNESS (usa)
- PANIC ZONE (usa)