!? Adventure was a great game. Warren Robinett pioneered the concept of having a multi-room universe in which things happen outside a person's vision and control. He is also probably the first programmer to hide a secret message in a video game (a programmer for the Channel F also put in messages, but from what I've heard he liked to show them off). Adventure is rather simplistic by modern standards (only about a dozen manipulable objects), but Warren Robinett's vision was far ahead of anyone else's (the only other game that comes close is Superman, which is built on the Adventure core written by Warren Robinett)
well, i guess the "concept" was good, but the technology to support the game just didn't do it for me.