Master of Orion

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Master of Orion
Master of Orion cover
Mac OS MacSoft
Release dates
DOS September 6, 1993
Mac OS (Classic) 1995
Windows April 20, 2010[1]
macOS (OS X) November 29, 2012[2]
Linux May 12, 2015[3]
Master of Orion guide at StrategyWiki
Master of Orion at Wikipedia
Master of Orion
Master of Orion 1993
Master of Orion II: Battle at Antares 1996
Master of Orion III 2003
Master of Orion (2016) 2016

General information Orion Forums - Official forums, has a subsection for the original classics Community Discussions for game series Support Page
Steam Community Discussions
Realms Beyond - Has a subsection for the series (particularly the classics)
The Orion Nebula


Source DRM Notes Keys OS
Prompts for answers from manual, code wheel, etc.
Mac OS
Also includes Master of Orion II: Battle at Antares. Pre-packaged with DOSBox.[4]
macOS (OS X)
Icon overlay.png
Currently only available by purchasing Master of Orion (2016).

Version differences[edit]

The pre-alpha/software pitch version of the game was actually known as Star Lords. It has some slightly different graphics and some races have slightly different names.

Essential improvements[edit]

Run in DOSBox[edit]

To improve DOSBox performance make the following changes to the DOSBox configuration file:

  • Change core=auto to core=dynamic
  • Change cycles=auto to cycles=max


The latest official patch is version 1.3, which can be found here. Note that the digital releases are fully updated, thus the update file is unnecessary on said version. An unofficial 1.4m is also available for download here. The original thread where it was discussed and created (download link dead) can be found here. There is also a 1.4n patch here, which is slightly newer than 1.4m. Note that 1.4n requires 1.4m to be installed first.
In addition to the above there is a fix that adds Gravis UltraSound support available here. For more info on getting GUS working, see DOSBox. A map editor is also available here.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows <path-to-game>\
Mac OS (Classic)
macOS (OS X)
Linux (Proton) <Steam-folder>/steamapps/compatdata/410970/pfx/[Note 1]
It's unknown whether this game follows the XDG Base Directory Specification on Linux. Please fill in this information.

Save game data location[edit]

System Location
Windows <path-to-game>\
Mac OS (Classic)
macOS (OS X)
Linux (Proton) <Steam-folder>/steamapps/compatdata/410970/pfx/[Note 1]

Save game cloud syncing[edit]

System Native Notes
GOG Galaxy
Steam Cloud

Video settings[edit]

In-game options menu.
In-game options menu.
Graphics settings ( version)
Graphics settings ( version)

Input settings[edit]

Keyboard and mouse Native Notes
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).

Audio settings[edit]

Audio options Native Notes
Separate volume controls
Surround sound
Closed captions
Mute on focus lost


Language UI Audio Sub Notes
Fan translation by «Бюро переводов Old-Games.RU»


Multiplayer types

Type Native Notes
Local play
Hot seat
LAN play
A fan made "multiplayer project" was once attempted but later abandoned. After a server failure on the mods original host site, a map editor (same one listed in essential improvements) is all that remains of the project.[5][6][7]
Online play
See note above.

Other information[edit]


Technical specs Supported Notes
DOS video modes VGA
64-bit executable

System requirements[edit]

Minimum Recommended
Operating system (OS) 3.3 6.2
Processor (CPU) Intel 386 16 MHz Intel 486
System memory (RAM) 3 MB 6 MB
Hard disk drive (HDD) 14 MB
Video card (GPU) VGA graphics card
Minimum Recommended
Operating system (OS) XP, Vista, 7, 8
Processor (CPU) 1 GHz 1.4 GHz
System memory (RAM) 256 MB 512 MB
Hard disk drive (HDD) 14 MB
Video card (GPU) DirectX 7 compatible DirectX 9 compatible
macOS (OS X)
Operating system (OS) 10.6.8
Processor (CPU) Intel Core Duo 2 GHz
System memory (RAM) 1 GB
Hard disk drive (HDD)
Video card (GPU) 64 MB of VRAM


  1. 1.0 1.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/410970/ in addition to or instead of this directory. The app ID (410970) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.