Arma 3 Game Keys

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 "LIBRARY" tab and start downloading.

Experience true combat gameplay in a massive military sandbox. Deploying a wide variety of single- and multiplayer content, over 20 vehicles and 40 weapons, and limitless opportunities for content creation, the PC’s premier military game series is back. Authentic, diverse, open - Arma 3 sends you to war. Features Altis & Stratis Defeat your enemy on richly detailed battlefields – stretching over 290 km² of Mediterranean island terrain. Solo & Multiplayer Experience military gameplay by completing the singleplayer showcase missions. Run through the competitive firing drills to hone your shooting and movement skills. Form a squad and team up to fight against your enemy in multiplayer scenarios. Weapons & Vehicles Master air, land, and sea with 20+ vehicles; choose your gear, pick from 40+ weapons, and customize your loadout. Content Creation Start creating your own experiences with the powerful scenario editor; develop mods for others to play; share and discover scenarios on Steam Workshop; join our creative community. Revamped Engine Navigate the battlefield with fluid new animations; feel the devastating power of combat with the upgraded sound engine, new ragdoll simulation and PhysX™-supported vehicles. Campaign Inbound Supplied as free DLC after release, the official campaign will be deployed in 3 gameplay-driven episodes: Survive, Adapt, Win.