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Set during World War II, scientist Dr. John Russell is sent to Berlin on an undercover mission to investigate the Nazi's interest in an experimental uranium bomb project. He is no trained spy however, so he is accompanied by British MI6 agent Peter Graham, and later Anne Taylor. Next to the main storyline, Russell will also need to find out if his companions are pursuing their own agenda.

This 3D adventure with pre-rendered backgrounds is entirely mouse-driven with a point-and-click interface. The left mouse button moves Russell around and is used to examine objects. The right mouse button is used to pick up or use items. Pressing the latter twice makes the character run. Puzzles consist of researching articles, item combinations, but also mechanical systems and broader puzzles, such as piecing a torn letter together. The game includes a beginner's mode, where pressing a key highlights all important objects in the area.

Optionally, the player can choose to play the entire game with a sepia filter, rendering the images a more authentic and historical feel.


Undercover: Operation Wintersun Windows In the "Heereswaffenamt" you hope to find some information about the uranium bomb.
Undercover: Operation Wintersun Windows But first you have to find the right key to the right locker.
Undercover: Operation Wintersun Windows The map of Berlin
Undercover: Operation Wintersun Windows The backgrounds are very rich in detail.

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Alternate Titles

  • "Совершенно секретно: Операция Wintersonne" -- Russian spelling
  • "Undercover: Operation Wintersonne" -- German title
  • "Undercover: Operación Wintersun" -- Spanish title
  • "Berlin 1943: Les secrets de l'opération Wintersun " -- French title

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Critic Reviews Oct 06, 2006 77 out of 100 77
PC Action Oct 30, 2006 76 out of 100 76
PC Games (Germany) Oct 23, 2006 75 out of 100 75
PC Powerplay Oct 25, 2006 72 out of 100 72
Adventure Advocate Oct 13, 2007 3.5 Stars3.5 Stars3.5 Stars3.5 Stars3.5 Stars 70 Oct 03, 2006 69 out of 100 69
La Aventura es la Aventura Sep 05, 2007 60 out of 100 60 Oct 09, 2007 5 out of 10 50 Feb 07, 2007 9 out of 20 45
GameSpot Oct 05, 2007 3 out of 10 30


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Sciere (385192) added Undercover: Operation Wintersun (Windows) on Dec 31, 2006