Steam app 298050 · updated 12 Sep 2026, 18:19 UTC
The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers.
719 hourly samples, with the daily peak drawn over them. Weekends are shaded.
136 months, June 2015 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 438 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 281 hourly samples. Each dip is a night. Weekends are shaded.
Master of Orion was released on 25 Aug, 2016.
| Language | Full audio |
|---|---|
| English | ● |
| Russian | ● |
| French | |
| German | |
| Spanish - Spain | |
| Czech | |
| Japanese | |
| Portuguese - Brazil | |
| Turkish | |
| Polish | |
| Korean | |
| Simplified Chinese | |
| Traditional Chinese |
A blank audio cell means full audio was not marked in the returned language list.
Standard Edition Release Trailer
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Master of Orion Collector's Edition Trailer
Watch on Steam
Master of Orion Early Access 1 Trailer
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Master of Orion Voice Actors Revealed
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Announcement trailer
Watch on Steam102 achievements in total.
50 developer announcements, Jul 2016 to Mar 2020 · times in UTC
{STEAM_CLAN_IMAGE}/9085117/2943556b69580bedbfc6236c095f9fad20620a40.png Welcome, Star Conquerors! We have noticed an interest in Master of Orion among our Chinese players, so have released a small patch with language support for the players…
Patch notesGreetings Explorers, We have just released a minipatch that tackles the following ingame issues: Fix for Special Abilities not working in Custom Races Fix for espionage UI refreshing when switching selected agents Fix for tactical combat…
Patch notesGreetings Explorers, We have just released a minipatch that tackles the following ingame issues: Fix for Special Abilities not working in Custom Races Fix for espionage UI refreshing when switching selected agents Fix for tactical combat…
knariGreetings Explorers, Today we released an update that addresses certain issues present in the last build. Read on for the full list of changes: Improved Performance: Turn processing has been greatly optimized. Turns now process up to 50%…
Patch notesGreetings Explorers, Today we released an update that addresses certain issues present in the last build. Read on for the full list of changes: Improved Performance: Turn processing has been greatly optimized. Turns now process up to 50%…
knariGreetings Explorers, Today we’ve released a new version of the game manual, which can be found in the local files of Master of Orion (Game properties / Local files / Browse local files / Manuals). The updated version includes the Revenge of…
elpozoleolmecaGreetings Explorers, Today we’ve released a new version of the game manual, which can be found in the local files of Master of Orion (Game properties / Local files / Browse local files / Manuals). The updated version includes the Revenge of…
elpozoleolmecaGreetings explorers, Today we have released a hotfix patch for Master of Orion. Thanks for all the reports that have made it possible! Fix for Leaders ships bonuses were calculated wrong on tactical battle. Fix for the Move Fleet hotkey not…
Patch notesGreetings explorers, Today we have released a hotfix patch for Master of Orion. Thanks for all the reports that have made it possible! Fix for Leaders ships bonuses were calculated wrong on tactical battle. Fix for the Move Fleet hotkey not…
knariGreetings explorers, Today we have released a hotfix patch for Master of Orion. Thanks for all the reports that have made it possible! Version 54.8 Patch Notes Fix for being able to engage multiple Antarans fleets in one battle when…
BertiuxGreetings explorers, Today we have released a hotfix patch for Master of Orion. Thanks for all the reports that have made it possible! Version 54.8 Patch Notes Fix for being able to engage multiple Antarans fleets in one battle when…
BertiuxGreetings explorers, A hotfix is now available for download, if it hasn't already updated for you. It addresses some of the issues you've reported since version 54.6 went live last week. Below you can find the patch notes. Balance Reduce…
Patch notesGreetings explorers, A hotfix is now available for download, if it hasn't already updated for you. It addresses some of the issues you've reported since version 54.6 went live last week. Below you can find the patch notes. Balance Reduce…
BertiuxGreetings Explorers, Today 1st of December we are proud to present you what is one of the biggest game updates since the beginning of Early Access. As you may notice, this build has some obvious influences from Master of Orion II, but it is…
Patch notesGreetings Explorers, Today 1st of December we are proud to present you what is one of the biggest game updates since the beginning of Early Access. As you may notice, this build has some obvious influences from Master of Orion II, but it is…
knariWargaming Labs and NGD Studios Release Epic Expansion, Introducing New Alien Races and more November 18, 2016 — The battle to conquer Orion is set to become even more challenging. On December 1, Master of Orion’s anticipated “Revenge of…
elpozoleolmecaWargaming Labs and NGD Studios Release Epic Expansion, Introducing New Alien Races and more November 18, 2016 — The battle to conquer Orion is set to become even more challenging. On December 1, Master of Orion’s anticipated “Revenge of…
elpozoleolmecaGreetings Explorers, Today we released a mini update to address some of the issues what you have reported since v51.2 was deployed. Read on for the notes, don’t hesitate to report if any other ongoing issue and please keep the feedback…
Patch notesGreetings Explorers, Today we released a mini update to address some of the issues what you have reported since v51.2 was deployed. Read on for the notes, don’t hesitate to report if any other ongoing issue and please keep the feedback…
[WG Labs]AshesAs you may know, we have heavily relied on your feedback since the beginning of the journey of Master of Orion. It has guided us through the whole development process, it has also helped us staying true to this legendary franchise and we…
BertiuxAs you may know, we have heavily relied on your feedback since the beginning of the journey of Master of Orion. It has guided us through the whole development process, it has also helped us staying true to this legendary franchise and we…
[WG Labs]AshesGreetings Explorers, As teased yesterday, during the 20th Anniversary of MOO 2, today we've released a new update for Master of Orion. It brings significant improvements in various fields, and it also introduces the highly demanded “mod…
Patch notesGreetings Explorers, As teased yesterday, during the 20th Anniversary of MOO 2, today we've released a new update for Master of Orion. It brings significant improvements in various fields, and it also introduces the highly demanded “mod…
[WG Labs]AshesGreetings explorers, Today – the 31st of October 2016 – isn’t any ordinary day. It marks the 20th anniversary of the release of Master of Orion II: Battle at Antares! This second, very popular entry of the saga is still considered to be one…
BertiuxGreetings explorers, Today – the 31st of October 2016 – isn’t any ordinary day. It marks the 20th anniversary of the release of Master of Orion II: Battle at Antares! This second, very popular entry of the saga is still considered to be one…
BertiuxGreetings Explorers, It is a great honor to inform you that Master of Orion has been nominated for the prestigious Golden Joystick Award for PC Game of the Year. We are both proud and grateful to have received this nomination alongside so…
knariGreetings Explorers, It is a great honor to inform you that Master of Orion has been nominated for the prestigious Golden Joystick Award for PC Game of the Year. We are both proud and grateful to have received this nomination alongside so…
[WG Labs]AshesGreetings Explorers, Today we've released a set of bug fixes for Master of Orion. The development team continues to work on the next major patch, but we felt these fixes should not be held back until then. Master of Orion v49.5 Patch Notes…
Patch notesGreetings Explorers, Today we've released a set of bug fixes for Master of Orion. The development team continues to work on the next major patch, but we felt these fixes should not be held back until then. Master of Orion v49.5 Patch Notes…
[WG Labs]AshesHybrid Wars is locked, loaded, and ready to rekindle your love for chaotic shooters of the ‘90s. Extreme Developers and WG Labs bring you fast and furious action, vibrant open worlds to explore, challenging missions to put your mercenary…
GeneralDirectionGreetings Explorers, A hotfix is now available for download, if it hasn't already updated for you. We're continuing to work on fixes for other issues that you've reported, so please keep an eye on the known issues thread. We'll be updating…
Patch notesGreetings Explorers, A hotfix is now available for download, if it hasn't already updated for you. We're continuing to work on fixes for other issues that you've reported, so please keep an eye on the known issues thread. We'll be updating…
GeneralDirectionGreetings Explorers, Today we've published the first post-release update for Master of Orion. There are many "quality of life" improvements in this update, especially when it comes to the user interface and tooltip information. Read on for…
Patch notesGreetings Explorers, Today we've published the first post-release update for Master of Orion. There are many "quality of life" improvements in this update, especially when it comes to the user interface and tooltip information. Read on for…
[WG Labs]AshesGreetings explorers, We're releasing a new build today to fix some of the nasty bugs you've been reporting. Work is getting started on the game's first major patch, but we wanted to get these fixed as soon as possible. Master of Orion…
Patch notesGreetings explorers, We're releasing a new build today to fix some of the nasty bugs you've been reporting. Work is getting started on the game's first major patch, but we wanted to get these fixed as soon as possible. Master of Orion…
GeneralDirectionGreetings explorers, We just released a small hotfix to address an issue with the tutorial. This hotfix applies to the Windows operating system. We will release the hotfix for other operating systems as soon as possible. You can find the…
Patch notesGreetings explorers, We just released a small hotfix to address an issue with the tutorial. This hotfix applies to the Windows operating system. We will release the hotfix for other operating systems as soon as possible. You can find the…
GeneralDirectionGreetings explorers, To coincide with the release of Master of Orion, we've published an update to the game. In addition to delivering the remaining content for Collector's Edition owners -- the digital art book, orchestral sound track and…
Patch notesGreetings explorers, To coincide with the release of Master of Orion, we've published an update to the game. In addition to delivering the remaining content for Collector's Edition owners -- the digital art book, orchestral sound track and…
[WG Labs]AshesGreetings Explorers, We wanted to share some insights of the Early Access phase, as a way to say thank you for all your support, and for all the precious feedback that we've received (and continue receiving). We wouldn't be where we are…
BertiuxGreetings Explorers, We wanted to share some insights of the Early Access phase, as a way to say thank you for all your support, and for all the precious feedback that we've received (and continue receiving). We wouldn't be where we are…
BertiuxGreetings Explorers, This is a small hotfix, but an important one. - Fixed an issue that could prevent the game from loading based on the system language For the full patch notes from today's version 47.0 update, click the link below!…
Patch notesGreetings Explorers, This is a small hotfix, but an important one. - Fixed an issue that could prevent the game from loading based on the system language For the full patch notes from today's version 47.0 update, click the link below!…
GeneralDirectionGreetings Explorers, Today we’ve released an update for Master of Orion. This brings the official game version to 47.0. Due to character limits in Steam news articles, we were unable to include the bugfixes in this post. Click here to read…
Patch notesGreetings Explorers, Today we’ve released an update for Master of Orion. This brings the official game version to 47.0. Due to character limits in Steam news articles, we were unable to include the bugfixes in this post. Click here to read…
GeneralDirectionGreetings Explorers, Over the past six months Master of Orion has been in Early Access on Steam and it has been an incredibly valuable experience. In this crucial time we've received an unbelievable amount of feedback on the game. Player…
KodyGreetings Explorers, Over the past six months Master of Orion has been in Early Access on Steam and it has been an incredibly valuable experience. In this crucial time we've received an unbelievable amount of feedback on the game. Player…
GeneralDirectionSAVE THE DATE – MASTER OF ORION IS COMING OUT OF EARLY ACCESS AND IS HITTING THE GALAXY HARD ON AUGUST 25TH! https://youtu.be/hzQqXv-9kHo That's right, Master of Orion will be released on August 25th, so don't forget to mark your calendars.…
BertiuxGreetings Explorers, Today we released a hotfix patch to address some of the issues you've reported since version 46.4 went live last week. Below you can find the patch notes. - Fixed a soft-lock that could be caused by the AI declaring war…
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | MasterOfOrion.exe | windows 64 | ||
| Launch | MasterOfOrion.x86_64 | linux 64 | ||
| Launch | MasterOfOrion.app | macos 64 |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
gameinstall | Cloud/{64BitSteamID} | *.save |
gameinstall | Cloud/{64BitSteamID} | *.cfg |
gameinstall | Cloud/{64BitSteamID} | *.data |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG