Adventure, Zork, Dungeon. If you were one of the fortunate few who lived at the vanguard of the digital revolution in the late 1970s, these three great progenitors of the multi-billion dollar video game industry may well induce fuzzy feelings of nerd nostalgia. For the rest of us, these “interactive fiction” games, belong to a rather strange and fanciful era, when gamers set out on virtual quests in front of cathode-ray terminals, reading neon-green block-letter instructions and responding with identically hued inline commands.
You are at the southern edge of a great cavern. To the south across a shallow ford is a dark tunnel which looks like it was once enlarged and smoothed. To the north a narrow path winds among stalagmites. Dim light illuminates the cavern.”
> go south
You have moved into a dark place.
It is pitch black. You are likely to be eaten by a grue. (Zork)