Command & Conquer Red Alert 3 is a real-time strategy game set during an alternate scenario of World War II. In the game the United States confronted the USSR. To provide their victory, the Soviets went back in time and changed the future. As a result, the third power appears - the Empire of the Rising Sun, and all three forces get involved in a new war. All factions in the game are playable and provide different playstyles. While the Soviet army is suitable for a fast-paced expansion, the Japanese side focuses on technological progress. The US keep the medium position.

In Red Alert 3 you need to build a base and develop technology to create weapons. The main difference from other RTS is that the campaign in the game is fully cooperative, played either with a friend online or with an AI teammate. The game also features Naval Warfare mode with facilities built on water and various marine units. Additionally, each country has 15 unique abilities to use during battles.