| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Graveyard, The | Reeves Telecommunications Laboratories |
? | English | |
| Morphostasis | Reeves Telecommunications Laboratories |
1984 | English | |
| Schatzoeker | NOS Hobbyscoop | ? | Dutch | Solution, Map |
| Sirens of Space, The | Reeves Telecommunications Laboratories |
? | English | |
| Tijdmachine, De | Gerton A. Lunter |
1988 | Dutch | Solution |