"Undercover: Operation Wintersun" is a point-and-click adventure game. The game takes place in an alternative version of history during World War II. The game's creators tried to maintain historical realities, while introducing some modifications.

The player takes on the role of John Russell, a physicist who is recruited by the British intelligence MI6 for a spy mission in Nazi Germany. Your task is to discover the secrets of Hitler's weapons program, which aims to tip the scales of victory in Germany's favor. However, John is not a professional spy, so during the mission he will need the support of more experienced agents.

Interactions with other characters play a key role in the game. Each person you meet has their own plans, motivations and character, which means that the player must be vigilant and skillfully establish relationships with both allies and opponents. The game's intrigue is full of surprises and surprising plot twists.

The main character is not a character we will like right away. His scientific approach often overshadows the true consequences of his actions. However, as the game progresses, John begins to see how much harm can be done by being blinded by scientific work. His character evolves, which is visible in his behavior and reflexes.

During the game, John will visit several places, such as London, Berlin, and a small German town. Each location is full of interactive elements, and puzzles mainly consist of combining various objects. The game also has basic spy elements, such as sneaking.

"Undercover: Operation Wintersun" is a game that draws the player in not only with its plot, but also with well-constructed characters and a realistic approach to history.