Eterna Corp is a TADS 2 interactive fiction game and is © 2002 by Christopher Cole.
Review by David Welbourn (originally posted at Baf's Guide)
A short example of AIF (Adult IF) where you play a man who has sex with a virtual reality sim of your female co-worker. Apart from some initial puzzles (finding the program disk, getting into the VR room), it's just straightforward VR sex with no surprises. I was mildly disappointed (though not surprised) that although the female sim has a few erogenous zones of interest, the male PC has only one.