Okay, I used to have an old Tandy 1000 computer way back in the day. One of the games I had(on a floppy disk) was a D+D type game where you were a little arrow icon. Monsters would appear as single letters inside orange(maybe) hallways. Hot keys were used for shooting arrows and drinking potions that you found along the way. Utterly pointless game. It was, as far as I can tell, impossible to beat. Sooner or later you'd run into a letter 'V' or 'D' or some other equally horrible monster-letter and you would die instantly. It was horribly addictive yet entertaining despite being impossible and futile to beat.
What the heck was it called?
'...because the minute a little girl is trampled by 100 teenage girls trying to get to Justin Beiber at the Tea Cups, you will be wondering why the hell we make poor Justin Beiber stand in a 30 minute line and create an unsafe atmosphere.'