A fun game having you go into the Colossal Cave where you have to figure out solutions such as what to take and what to drop while fighting elves. It was text driven. You type in a command and received a text respons. It is very much like reading a book where you use your imagination. Not like games today which are like movies.
When the IBM PC was announce, Adventure was the only game. It sold for $20 which made it a best seller. Whatw I don't like was you had to guess what the commands were wasting a lot of time. Also it could have had some hints when you got stuck.