The Datestones of Ryn
The Datestones of Ryn is a role-playing video game released in 1979 for the Apple II , Commodore PET , and TRS-80 by Automated Simulations ( later Epyx ) . 
<triplet> The Datestones of Ryn <subj> Commodore PET <obj> platform <subj> TRS-80 <obj> platform <triplet> 1979 <subj> 1979 <obj> point in time