How to play Ultima Ratio Regum on Mac

Game summary

Ultima Ratio Regum ("the last argument of kings") is a game which aims to integrate thematic content on historiography, philosophical idealism and the rise of modernist grand narratives, with the deep, complex and challenging gameplay one expects from a "classic" roguelike (and, of course, an ANSI display and permadeath). Set approximately around the Scientific Revolution, the player is tasked with discovering a conspiracy via identifying procedurally-generated clues hidden throughout the world's cultures, religions and societies; the game features extensive procedural generation of everything from tombs and religious altars to (in the future) paintings and sculptures, any or all of which may contain the clues required in a given playthrough.

Play Ultima Ratio Regum on Mac with Parallels (virtualized)

The easiest way to play Ultima Ratio Regum on a Mac is through Parallels, which allows you to virtualize a Windows machine on Macs. The setup is very easy and it works for Apple Silicon Macs as well as for older Intel-based Macs.

Parallels supports the latest version of DirectX and OpenGL, allowing you to play the latest PC games on any Mac. The latest version of DirectX is up to 20% faster.

Our favorite feature of Parallels Desktop is that when you turn off your virtual machine, all the unused disk space gets returned to your main OS, thus minimizing resource waste (which used to be a problem with virtualization).

Ultima Ratio Regum installation steps for Mac

Step 1
Go to Parallels.com and download the latest version of the software.
Step 2
Follow the installation process and make sure you allow Parallels in your Mac’s security preferences (it will prompt you to do so).
Step 3
When prompted, download and install Windows 10. The download is around 5.7GB. Make sure you give it all the permissions that it asks for.
Step 4
Once Windows is done installing, you are ready to go. All that’s left to do is install Ultima Ratio Regum like you would on any PC.
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