O Rei System Requirements

O Rei System Requirements (2021) - full specs, system checker and the gaming PC setup you need: Can I Run O Rei?

O Rei minimum requirements

  • Memory: 512 MB
  • Graphics Card: NVIDIA GeForce 510
  • CPU: Intel Atom Z510
  • File Size: 500 MB
  • OS: Windows XP, Vista or 7

Unknown system requirements

Automatically test your computer against O Rei system requirements. Check if your PC can run the game with our free, easy-to-use detection tool or enter your system manually.

Can I Run O Rei?

The cheapest graphics card you can play it on is an NVIDIA GeForce 510. To play O Rei you will need a minimum CPU equivalent to an Intel Atom Z510. You will need at least 500 MB of free disk space to install O Rei. O Rei system requirements state that you will need at least 512 MB of RAM.

O Rei will run on PC system with Windows XP, Vista or 7 and upwards.

Looking for an upgrade? Try our easy to use O Rei set up guides to find the best, cheapest cards. Filter for O Rei graphics card comparison and CPU compare. We'll help you find the best deal for the right gear to run the game.

Looking for ready made system? We have 1480 laptop computers in our database that can run O Rei. We take over 812 gaming laptops under $1000. Check our full compare laptops chart for the right systems or these best deals we've picked out below.

O Rei System Requirements


Via Steam


Hagane Lord Erin




Strategy Indie Free to Play

O Rei Release Date

25th of August 2019

What is O Rei?

Do you want to reign?