Zork is a text adventure where you enter text commands and then the game responds in text - to describe the surroundings, highlight items or places of interest, etc. Like, the game says "You are in a forest," and you type "go south," and the game updates to tell you what's in your new location. It's like the AI text adventures you see now (which are based on Zork-style games), but with every command and response hand-coded.
The Grues are monsters that eat you in Zork. "You were eaten by a grue" is a common bad ending.
Yeah. Everyone I knew always called them floppies whether they were 8" (mostly before my time), 5¼" or 3.5". Op was probably just adding for humor or something.
Some people assumed that "floppy disk" referred to the disk's protective jacket, which was neither a disk nor (in the case of these smaller ones) floppy.
It's possible that OP understands that the disk inside is floppy, and is just making a joke.
Old-school adventure game, one of the OG. I think it was CoD BlackOps 1 where one of the secrets was breaking out of your chair in the main menu, being able to walk over to a pc....and literally play the whole of Zork!