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Mare Nostrum is the newest expansion to Paradox Development Studio’s best-selling historical grand strategy game, Europa Universalis IV.

Europa Universalis IV: Mare Nostrum - Expansion

NOTICE: This content requires the base game Europa Universalis IV on Steam in order to play.

Mare Nostrum is the newest expansion to Paradox Development Studio’s best-selling historical grand strategy game, Europa Universalis IV. You now have even more tools at your disposal as you guide your nation through the early modern world. As its name suggests, Mare Nostrum introduces new systems connected to naval warfare and control of trade. The power of your fleets will depend on the number of sailors your nation can gather, and your ships can now be given missions and areas to patrol. There are also new options for creating trade leagues, and a host of other improvements.

Paradox Interactive, EUROPA UNIVERSALIS® Copyright© [2013] Paradox Interactive AB All rights reserved. www.paradoxplaza.com

NOTICE: This content requires the base game Europa Universalis IV on Steam in order to play.

Windows Minimum Requirements:

OS:Vista/Windows 7/Windows 8
Processor:Intel® Pentium® IV 2.4 GHz eller AMD 3500+
Memory:2 GB RAM
Graphics:NVIDIA® GeForce 8800 or ATI Radeon® X1900, 512mb video memory required
DirectX®:9.0c
Hard Drive:2 GB HD space
Sound:Direct X- compatible soundcard
Other Requirements:Broadband Internet connection
Additional:Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

Windows Recommended Requirements:

OS:Vista/Windows 7/Windows 8
Processor:Intel® Pentium® IV 2.4 GHz or AMD 3500+
Memory:2 GB RAM
Graphics:NVIDIA® GeForce 8800 or ATI Radeon® X1900, 1024mb video memory recommended
DirectX®:9.0c
Hard Drive:2 GB HD space
Sound:Direct X-compatible soundcard
Other Requirements:Broadband Internet connection
Additional:Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

Mac Minimum Requirements:

OS:Mac OS X 10.6.8 or better
Processor:Intel Core Duo Processor (2GHz or better)
Memory:4 GB RAM
Graphics:ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600 or higher, 1024MB graphics memory required
Hard Drive:6 GB HD space
Other Requirements:Broadband Internet connection
Additional:GLSL 1.3, OpenGL 2.1. Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

Mac Recommended Requirements:

OS:Mac OS X 10.6.8 or better
Processor:Intel Core Duo Processor (2GHz or better)
Memory:8 GB RAM
Graphics:ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600 or higher, 1024MB graphics memory required
Hard Drive:6 GB HD space
Other Requirements:Broadband Internet connection
Additional:GLSL 1.3, OpenGL 2.1. Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

Linux Minimum Requirements:

OS:Ubuntu 16.04 LTS
Processor:Intel Core Duo Processor (2GHz or better)
Memory:4 GB RAM
Graphics:ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600 or higher, 1024MB graphics memory required
Hard Drive:6 GB HD space
Other Requirements:Broadband Internet connection
Additional:GLSL 1.3, OpenGL 2.1. Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

Linux Recommended Requirements:

OS:Ubuntu 16.04 LTS
Processor:Intel Core Duo Processor (2GHz or better)
Memory:8 GB RAM
Graphics:ATI Radeon HD 6750 / NVIDIA GeForce 320 / NVIDIA GeForce 9600 or higher, 1024MB graphics memory required
Hard Drive:6 GB HD space
Other Requirements:Broadband Internet connection
Additional:GLSL 1.3, OpenGL 2.1. Controller support: 3-button mouse, keyboard and speakers. Internet Connection or LAN for multiplayer

To activate the Steam key you've received, follow the instructions below;

First up, open the Steam client. (If you don't have it, simply click the "Install Steam" button here => Steam Store )
Sign in to your Steam account. (If you don't have one, click here to create a new one => Steam Account)
Click on the "ADD A GAME" button in the bottom corner of the client.
Then, select "Activate a product on Steam..."
Write down or copy-paste the activation key that you've received from %s in the window.
Your game is now visible in your library! Click on your "Library".
And finally, click on the game and select "Install" to start your download.