The ultimate Master of Orion 2 fan patch.
Download 1.50.18.3Fixes 10 critical crash bugs ++ 6 networked multiplayer bugs ++ About 30 interface bugs ++ Over 100 game-rule bugs.
Play against a random number of opponents ++ Play with auto designed ships ++ 6th ship design slot ++ Greatly improved build queue management ++ Unbuy function ++ New hotkeys.
1.50 improved ++ ICE 27 ++ VDC ++ Version 1.2 mod ++ Melee ++ Lots of mapmods ++ A standard mode is available, which is purely the patch, no mods.
Integrated mapgen functionality ++ Extensive modding with plain text configuration files ++ Lua scripting support.
English, German, French, Spanish and Italian DOS editions of Master of Orion 2 are supported. ++ Installing the 1.50 patch does not break your current MOO2 installation. No files are overwritten. Version 1.31 or 1.40 games remain intact.
Multilingual version 1.50.18.3 patch
1.50 fan patch. February 6, 2021. 10471 kB.
Development of the 1.50 patch for Master of Orion II: Battle at Antares started in the last quarter of 2015 and the first version, 1.50.0, was released February 6, 2016. Currently the patch stands at version 1.50.18.3. Development is still ongoing and a version 1.50.19 is in the works.
English version 1.40b25 patch
Updated 1.40 fan patch. November 9, 2020. 1178 kB.
The English DOS version sold online is fan patch 1.40b23 from May 2006. Information about this patch can be found in Lord Brazen's 1.40 patch FAQ. The 1.40b25 version is what I use for testing with the 1.40 patch. It has 4 changes compared to b23: Screen fade-ins and fade-outs are faster; Tactical Combat is turned on by default in the Game Setup screen; missiles default to x2 shot racks instead of x5 in the Design Dock console; and the cheat ALT+menlo gives 30.000 instead of 9.999 research points. The zip file includes a changelog and the source code of the 1.40 patch.
In case you do not want to play a fan patch you can revert from 1.40b23 to the last official patch as follows: Download English version 1.31 patch (below), extract the file "ORION2.EXE" from the zip file and copy it into your MOO2 directory.
English version 1.31 patch
Last Microprose patch. April 11, 1997. 3350 kB.
German version 1.31 patch
Last Microprose patch. April 11, 1997. 2342 kB.
There are no patches for the French, Spanish and Italian editions because they already released at version 1.31.
1.50 improved
The default mod of the 1.50 patch. Introduces new combat mechanics like Ship Initiative 2.0 and also makes a number of tweaks to weapons and special systems. Special care was given to improve AI ships designs. The Excel manual included with the download explains it all. Race picks & Tech Tree are unchanged from Classic.
Version 1.2 mod
This little mod approximates MOO2 version 1.2 as close as possible with current 1.50 config: Creative costs 6 picks again, Psilon race design restored, original Guardian and Antaran ship designs, Plasma Cannon, Ion Cannon and Gyro Destabilizer weapon stats set back to original values!
ICE
Extensive mod that makes the AI more challenging. This mod changes race picks & the Tech Tree too. The difference between ICE-M and ICE-X is the AI strength: ICE-X Impossible has the strongest AI, you'd better know what you are doing!
ICE-F 27
ICE-F is a mod-of-the-mod by Dirtbag. It's used for multiplayer.
ICE-XM 27
ICE-XM is a mod-of-the-mod by Pendra37. It's got a random tech tree.
Depth 5.21
Link to a mod by Depth386 for the 1.50 patch.
No AI surrender micromod
Prevents AI from surrendering before turn 1000. Unzip and place config file in 150\mods\150, then restart MOO2 Launcher.
Corion2 1.1.1
Savegame Editor. 153 kB. Corion version 1.1.1 has been optimized for the 1.50 patch.
MoO2 Workshop
LBX editor suite by Grig de Griz. 2713 kB. Handles text, picture and font files. Includes a leader editor.
O2M 4.02
Modding tool and game launcher by Ponkyo. Link to external page. Includes a tech tree editor.
O2M is not fully compatible with MOO2 Launcher. If you want to use both, then create 2 separate MOO2 game directories, one for each launcher.
Discord MOO2 server
Looking to chat with other players? Looking to play with other humans? Join the MOO2 chat server on Discord!
Civfanatics Center
Forum section for MOO2 and other Civ-related games.
Civilization Forum (Deutsch)
Forum section for Master of Orion.
Master of Orion Subreddit
Subreddit community for all versions of Orion.
The Orion Nebula
Dedicated MOO2 community forum.
The Orion Sector
Other MOO section of the Orion Sector forum.
GOG forum
Forum for MOO1 and MOO2.
Steam forum
Forum for MOO1 and MOO2.
masteroforion2.blogspot.com
Siron's Master of Orion 2 blog has come back to life. Contains news & interesting posts about MOO2 mechanics.
lordbrazen.blogspot.com
Lord Brazen's blog. Has not been updated for a long time.
moo2loknar.blogspot.com
New blog by Admiral Loknar. Always nice to have a fresh addition.
Rocco on Youtube
My Youtube channel has lots of MOO2 vids.
StrategyWiki for MOO2
Contains a helpful leaders overview.
Cabman Housing video discussion
Discussion thread about the excellent pop growth demonstration video by Cabman.
Turn 100 Benchmarks
Discussion thread about turn 100 benchmarks.
Biospheres vs Hydro-farms discussion
Discussion thread about Biospheres vs Hydroponic Farms.
Gamespot's GameFAQs
MOO2 section with various (old) guides and other info.
Cybersaber's Strategy Guide
Overview for players new to online play.
Delthea's ramblings on MOO2
Overview of MOO2 race picks and technology choices.
Humbe's ramblings on MOO2
Overview of MOO2 game mechanics and strategy.
Humbe's -10 challenge
Overview of games played with custom races with -10 worth of penalties.
Kfizzle's MOO2 Guide
The moo2 how to play more effective faq.
MOOniac's Guide to the Galaxies
The Master of Orion II pre-FAQ from 1997.
Steffens späte Spieltipps
Elaborate overview of the game auf Deutsch.
Custom Race Archive
Huge collection of race builds with classic picks for your inspiration.
The Scientific Gamer
In Praise Of: Master of Orion 2.
Space Sector
Master of Orion 2: The Formula behind the Success.
GameSpot
Master of Orion II: Battle at Antares Review.
DOSBox
Needed to run MOO2 on modern machines.
Nirran's page
Contains tools for MOO2 versions 1.31 and 1.40, including OCL_Improved and PickHack.
Bladrov's Palace
Web page dedicated to the Master of Orion series.
masteroforion2.com
I wonder who keeps this old website alive.
microprose moo2 page
Internet Archive capture of Microprose's MOO2 page.
First moo2mod website design
Internet Archive capture of my first moo2mod design from 2015.
Previous moo2mod website design
Last capture by the Internet Archive of my second moo2mod design (2015-2019).