Most wanted solutions:

Cave of Time, The (Bantam, 1985) - C64, multiple choice

Caves of Olympus (Howard W Sams Co Inc, 1982) - Apple II game

Fourth Protocol - problems with the current solution - anyone familiar with the game please contact me

Inmate (Philip Goetz, 1987) - Apple II

Logan (Markt & Technik, 1990) - German C64 text adventure

Murder on the Atlantic (IntraCorp, Inc.) - pc

Mystery of Arkham Manor, The (Melbourne House, 1987) - Spectrum/Amstrad

Orc Quest (?)

Pain, The (Italysoft, ?) - C64 text adventure

Passengers on the Wind 1+2 (Infogrames, 1987/1988)

Price of Peril (Input 64/Verlag Heinz Heise, 1988) - German C64 text adventure

Quondam - BBC

Rats, The (Hodder & Stoughton, 1985) - Spectrum/C64 strategy/adventure

Ring Quest (Penguin) - this is a different version than the Origin one already in CASA

Sorderon's Shadow (Beyond) - Spectrum

Treasure Island (Mastertronic, 1987) - C64