Not an American user?


Jack is back. And this time he has the internet with him. For the first time in the long running series, you can play with your mates over the internet. There are 600 questions that must be answered and a new game type called Bug out, where little bugs fly onto the screen and mention a few words. If the words don't go with the clue, you must be the first to buzz in to splat the little guys. Other than that, this is the same Jack that we have (or haven't) known for some time.


There are no Windows user screenshots for this game.

Promo Images

There are no promo images for this game

Alternate Titles

  • "你不了解杰克5" -- Chinese title (simplified)
  • "YDJKJ 5" -- Informal abbreviation

Part of the Following Group

User Reviews

There are no reviews for this game.

Critic Reviews

Game Vortex 2000 85 out of 100 85
Electric Playground May 08, 2004 8.5 out of 10 85
IGN Dec 21, 2000 8.2 out of 10 82
Game Informer Magazine Jan, 2001 8 out of 10 80
GameSpot Dec 04, 2000 7.9 out of 10 79
HappyPuppy Mar 13, 2001 7 out of 10 70


There are currently no topics for this game.


There is no trivia on file for this game.

Kartanym (10726) added You Don't Know Jack: 5th Dementia (Windows) on Jan 13, 2001