Includes: Base game Galactic Civilizations III - Mega Events DLC Galactic Civilizations III: Crusade Expansion Pack Galactic Civilizations III: Retribution Expansion Galactic Civilizations III is the premier space strategy game. The latest installment of one of the highest-rated strategy series of all time, created by the original developers at Stardock, Galactic Civilizations III challenges players to build an empire that dominates the galaxy through conquest, diplomacy, cultural hegemony, or scientific research. The stars are yours, if you can balance the demands of expansion, exploration, diplomacy, and all-but-inevitable galactic warfare. Careful strategy, not twitch reflexes, lead to victory in this turn-based strategy epic. Online multi-player comes to Galactic Civilizations for the first time in Galactic Civilizations III. Conquer the galaxy alongside your friends or battle for supremacy in titanic clashes.

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "MY GAMES" tab and start downloading.