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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 Help Anne sneak past the Nazi-guards.
Undercover: Operation Wintersun Windows How can you sneak past these soldiers without being spotted?
Undercover: Operation Wintersun Windows The backgrounds are very rich in detail.

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

Adventure Corner Sep 25, 2006 88 out of 100 88
GamesFire Oct 09, 2006 83 out of 100 83
GameStar (Germany) Oct, 2006 78 out of 100 78
PC Games (Germany) Oct 23, 2006 75 out of 100 75
Adventure Island Dec 12, 2007 7 out of 10 70 Oct 03, 2006 69 out of 100 69
Worth Playing Nov 09, 2007 6.8 out of 10 68
Just Adventure Oct 12, 2007 C+ 58 Feb 07, 2007 9 out of 20 45
GameSpot Oct 05, 2007 3 out of 10 30


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Sciere (358769) added Undercover: Operation Wintersun (Windows) on Dec 31, 2006