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.
Main Features
Map Sharing
This is a new diplomatic action, where you can ask other nations for their map of a certain region.
Naval Missions
New mission system makes it easier to send your fleets to a region, and expect them to survive.
Barbary Pirates
North African Muslim states can raid the coastlines of their neighbors for gold and sailors.
Trade Leagues
Merchant republics can recruit minor nations into their Trade League for common defense and, more importantly, common riches.
Condottieri
Nations can rent their armies out to fight in other people’s wars, earning valuable coin for the realm.
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
Storage: 2 GB HD space
Directx: 9.0c
Sound card: Direct X- compatible soundcard
Additional notes: Broadband Internet connection
windows Recommended
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
Storage: 2 GB HD space
Directx: 9.0c
Sound card: Direct X-compatible soundcard
Additional notes: Broadband Internet connection
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-04-21
From Wishlist to Courtroom: The Steam Lawsuits Explained
There have been numerous Steam court case lawsuits throughout the years and ever since the start of the year they have made the pile even bigger! We decided to check out some of the latest accusations against the popular gaming platform as well as go through some of the previous cases that caused a stir of Valve legal issues in the past! Gabe Newell and Valve have definitely not been strangers to the court system…
As you probably know, in a huge variety of game titles there are usually a lot of mainline task objectives, but very often there are multiple side quests that would advance you further in the gameplay. This is exactly why we decided to run a Side Quest promotion on our YUPLAY site. In order to participate in it you have to make an order over 20€ between 17.04.2026 18:10 CET and 20.04.2026 02:00 CET, and you will get a 1€ voucher for next purchase…
