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2K Definitive Strategy Collection Steam CD Key

2K Definitive Strategy Collection Steam CD Key
Action Strategy
Region free
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Price: $10.64
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[329800] $10.64 Buy now

Includes 2 items: Sid Meier's Civilization V and XCOM: Enemy Unknown.

Sid Meier's Civilization V

The Flagship Turn-Based Strategy Game Returns!

Become Ruler of the World by establishing and leading a civilization from the dawn of man into the space age: Wage war, conduct diplomacy, discover new technologies, go head-to-head with some of history’s greatest leaders and build the most powerful empire the world has ever known. 


XCOM: Enemy Unknown

XCOM: Enemy Unknown will place you in control of a secret paramilitary organization called XCOM. As the XCOM commander, you will defend against a terrifying global alien invasion by managing resources, advancing technologies, and overseeing combat strategies and individual unit tactics.

The original XCOM is widely regarded as one of the best games ever made and has now been re-imagined by the strategy experts at Firaxis Games. XCOM: Enemy Unknown will expand on that legacy with an entirely new invasion story, enemies and technologies to fight aliens and defend Earth.

You will control the fate of the human race through researching alien technologies, creating and managing a fully operational base, planning combat missions and controlling soldier movement in battle.


XCOM: Enemy Unknown:

  • PC:

    • OS:Windows Vista 
    • Processor:2 GHz Dual Core 
    • Memory:2 GB RAM 
    • Graphics:NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater 
    • DirectX®:9.0 
    • Hard Drive:20 GB HD space 
    • Sound:DirectX Compatible 
    • Other Requirements:Broadband Internet connection
    • Additional:Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4.

Sid Meier's Civilization V:

  • PC:

    • OS: Windows® Vista SP2/ Windows® 7 
    • Processor: Intel Core 2 Duo 1.8 GHz or AMD Athlon X2 64 2.0 GHz 
    • Memory: 2GB RAM 
    • Graphics:256 MB ATI HD2600 XT or better, 256 MB nVidia 7900 GS or better, or Core i3 or better integrated graphics 
    • DirectX®: DirectX® version 9.0c 
    • Hard Drive: 8 GB Free 
    • Sound: DirectX 9.0c-compatible sound card 
    • Note: Optimized for the touch-screen Ultrabook™ device

  • XCOM: Enemy Unknown:

  • Mac OS X:

    • OS: 10.8.5 (Mountain Lion) 
    • Processor: 2.0 GHz Intel Core 2 Duo (Dual-Core) 
    • Memory: 4 GB RAM 
    • Hard Disk Space: 20 GB 
    • Video Memory: 256 MB 
    • Video Card: AMD HD4000 / NVIDIA 9000 Series (See NOTICE for details) 
    • Additional: Broadband Internet Connection. 
    • NOTICE:The following graphics cards are not supported: ATI X1xxx series, ATI HD2xxx series, Intel GMA series, NVIDIA 7xxx series, NVIDIA 8xxx series. The following cards require you to have 8GB of system RAM: NVIDIA 320M, NVIDIA 9400 and Intel HD3000.

Sid Meier's Civilization V

  • OS: 10.8.5 (Mountain Lion), 10.9.5 (Mavericks), 10.10.5 (Yosemite), 10.11.1 (El Capitan) 
  • Processor: Intel Core 2 Duo (Dual-Core) CPU Speed: 2.4 GHz 
  • Memory: 2 GB RAM 
  • Hard Disk Space: 8 GB 
  • Video Card (ATI): Radeon HD 2600 
  • Video Card (NVidia): Geforce 8600 
  • Video Card (Intel): HD 4000 
  • Video Memory (VRam): 256MB 
  • Multiplayer: Internet (TCP/IP) and LAN (TCP/IP) play supported. Please note, it is possible for Mac and PC to become out of sync during updates. Within this short time period, Mac users will only be able to play other Mac users. 
  • NOTICE:This game is not supported on volumes formatted as Mac OS Extended (Case Sensitive) 
  • NOTICE: The following video chipsets are not supported for Civilization V: ATI Radeon X1000 series, HD 2400, Nvidia GeForce 7000 series, 8600, 9400, Intel GMA (950/X3100), HD 3000

  • X-Com

  • SteamOS + Linux:

    • OS: Ubuntu 14.04 (64 bit required) 
    • Processor: 2GHz 
    • Memory: 4GB Memory 
    • Graphics: 512MB* 
    • Hard Drive:16GB HD space 
    • Other Requirements: Nvidia 600 series+, AMD 6000 series+, Intel Iris Pro. 
    • IMPORTANT: Requires 64bit OS to play.
  • Sid Meier's Civilization V

  • SteamOS + Linux:

    • Operating system: steamos 
    • Cpu processor: intel core i3, amd a10 
    • Cpu speed: 2.4ghz 
    • Memory: 4 gb ram 
    • Hard disk space: 10 gb 
    • Video card (ati): radeon hd 6450 
    • Video card (nvidia): geforce 640m 
    • Video card (intel): iris pro 
    • Video memory (vram): 1gb 
    • Important notice: don't meet the above requirements? Running on ubuntu? That doesn't mean your configuration wont run civ v, it just means we have not tested and vetted your configuration. Visit the civilization v community page to share your experience with other linux players and learn about how to send bugs to aspyr. Your feedback will help us improve civ v linux and future aaa linux releases! 
    • Notice: intel integrated video chipsets (gma 9xx, hd 3xxx) will not run civilization v for steamos and linux, and are unsupported.

Key activation

  1. Go to: and download STEAM client

  2. Click "Install Steam" (from the upper right corner)

  3. Install and start application, login with your Account name and Password (create one if you don't have).

  4. 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.

If you have any problems regarding activation, please contact us:


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