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Co-op Missions

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"Join the battle with a friend in an open-ended cooperative experience. Choose a powerful commander from your favorite race and fight in diverse scenarios with dynamic, campaign-style objectives. Level up your commander to gain access to new units, abilities, and customization options for your army. The time is now. The theater of war awaits, commander."

- Mode summary(src)

AlliedCommanders SC2-LotV Logo2

Allied Commanders

Co-op Missions[1], formerly known as Allied Commanders, is a two player[2] gameplay mode featured in Legacy of the Void.

The mode is distinct from the Arcade.[3]


AlliedCommanders SC2-LotV Logo1

Allied Commanders

In Co-op Missions, players take on the role of various commanders from the StarCraft universe, each of them possessing unique abilities and upgrades and bestows special bonuses on their armies. Players are able to battle through a series of special scenarios together, leveling up their commanders’ capabilities as they progress.[4] New abilities and units are unlocked as one progresses through the mode, along with gaining experience.[5] Which missions are played can be chosen or randomly determined for bonus experience, and the computer opponent will utilize different strategies in each mission. Each race is available for each mission.[6]

Difficulty can be adjusted in the mode,[7] and a matchmaking system is utilized.

Each commander gains experience independently. Upon completion of a mission, a commander will gain experience—the harder the difficulty setting, the greater the level of experience gained. As each commander levels, they will unlock additional units to call forth into battle as well as upgrades to existing abilities or traits. Each day you can earn 10000 bonus experience with the first victory of the day for one commander.

The mode features its own achievements that give players portrait rewards.[6]


The events of the missions in Co-op Missions take place during the End War. Specifically, after the second mission of the Legacy of the Void campaign, and before the epilogue missions.[8] However, Blizzard officially considers the game mode and events that take place in its missions non-canon, which grants them more freedom in gameplay design.[9]


Main article: Mutators

Mutators are a Co-op Missions feature that were introduced in Patch 3.3. They are special conditions designed to add variety to missions, and vary on a weekly basis.[10]

Mastery Levels

Mastery Levels were introduced in Patch 3.3. With mastery levels, any experience a player earns on a maxed out level 15 commander will go towards earning Mastery Levels, up to a maximum of 90. Each level grants the player a point that they can spend on each of their level 15 commanders to increase their power. This includes spending points to increase attack damage, reducing deployment time of abilities, buffing health of structures, and so on. With up to 90 points available, the number of options can't be filled out for every command, but the points can be reset and re-applied at any time prior to starting a match.[10]

List of Commanders

AlliedCommanders SC2-LotV Art1

The mode's commanders (as of Stukov)




Future Commanders

List of Missions

Future Missions



The mode was originally called "Allied Commanders." It was changed to "Co-op Missions" in order "to better communicate the design intent."[13] Blizzard staff later explained the name was causing confusion with Archon Mode, where two players work together commanding one force in melee gameplay; the name change to "Co-op Missions" was simpler and better conveyed to players the type of gameplay they can expect.[9]

The mode was created to provide a more accessible multiplayer mode for StarCraft II, as the developers believe that the standard multiplayer has a reputation for being inaccessible and time consuming.[7] It is intended for players mainly interested in singleplayer, but provides a more open-ended and social experience than a standard campaign.[14]

Design Process

When designing a mission in the mode, map layout is the first issue addressed. As two players are involved in a mission, the map size must reflect this. Adapting a mission from the game's singleplayer, base size is increased, expansions added, and the paths of choke points are generally widened. Once the layout has been solidified, enemy unit placement and composition are looked at. The main issue is making sure the enemies are strong enough to deal with the power of combined player armies and commander abilities. Finally, the developers spend a ton of time implementing and tuning the main and bonus map objectives as well as the attack waves. When choosing which maps to import from the game's campaign, the mechanics that would be well suited to the mode are looked at first.[15]

When choosing a commander for implementation, a variety of factors are considered. These include the popularity of the character, and ensuring a relatively equal distribution between the number of commanders available to the three races.[16] Each commander, even of the same race, is designed to look artistically unique.[17]

Subsequent Development

More maps and commanders will be added to the mode post-launch.[7] Karax was released for free December 15th, 2015, but future commanders will require purchase.[18] As of "Miner Evacuation," it is intended that newer maps have elements of randomness (e.g. objectives spawning at random locations), helping in replayability.[16]

Leaderboards will be added at some point in the future. Each time a player completes a mission, they'll get a score that reflects how efficiently they completed that mission. Once they've completed all the missions, a score on the leaderboard will be assigned. Separate scores will be given for mutators. The leaderboards will reflect the choice of commander and the difficulty on which the map was played. They're expected to be implemented in mid-2017.[19] They are intended to allow indirect competition between players. Leaderboards will be refreshed in conjunction with the release of new maps and commanders.[16]

Datamined Commanders


Datamined Missions

  • The Sky is Falling (data and mission objectives only, based on "Sky Shield")[20]



According to a poll conducted by Blizzard, 16% of StarCraft II players' primary interest in the game is in Co-op Missions (as of January, 2017).[22]


  1. 2015-10-30, Legacy of the Void: Co-op Missions. Blizzard Entertainment, accessed on 2015-10-30
  2. 2015-04-23, BLIZZARD ENTERTAINMENT AT GAMESCOM 2015. Gamestura, accessed on 2015-05-26
  3. 2015-05-12, With friends like these.... Blizzard Entertainment, accessed on 2015-05-13
  4. 2014-11-07, StarCraft II: Legacy of the Void Warps into BlizzCon 2014. Blizzplanet, accessed on 2014-11-11
  5. 2014-11-07, StarCraft II Legacy of the Void Campaign Overview. YouTube, accessed on 2014-11-12
  6. 6.0 6.1 2015-10-30, Legacy of the Void Features: Co-op Missions. Blizzard Entertainment, accessed on 2015-11-01
  7. 7.0 7.1 7.2 2015-08-08, Starcraft II: Legacy of the Void - Allied Commanders Mode - GamesCom 2015. YouTube, accessed on 2015-08-13
  8. 2017, Rock the Cabinet Guidelines. Blizzard Entertainment, accessed on 2017-04-10
  9. 9.0 9.1 2016-05-13, Reddit Co-op Staff AMA. Reddit, accessed on 2016-05-15
  10. 10.0 10.1 2016-05-09, Legacy of the Void Patch 3.3: New Co-op Content and Features . YouTube, accessed on 2015-05-09
  11. Twitch Reveal: New Co-op Commander 54-24-2017
  12. 2017-04-24, StarCraft II Co-op Commander Reveal., accessed on 2017-04-24
  13. 2015-11-01, StarCraft II: Legacy of the Void - Co-op Missions Preview. YouTube, accessed on 2015-01-11
  14. 2015-06-22, Blizzard will wrap up 17 years of storytelling in StarCraft II: Legacy of the Void. GamesBeat, accessed on 2015-06-24
  15. 2015-12-18, Introducing Lock & Load!. Blizzard Entertainment, accessed on 2015-12-18
  16. 16.0 16.1 16.2 2016-11-05. StarCraft 2: Lead Game Designer Interview At BlizzCon 2016!. Blizzard Entertainment. Accessed 2016-11-065.
  17. 2016-11-12, BlizzCon 2016: StarCraft Interview with Allen Dilling. YouTube, accessed on 2016-11-16
  18. 2015-12-15. Karax now Available in Legacy of the Void Co-op Missions!. StarCraft II Main Site. Accessed 2015-12-15.
  19. 2016-11-05. BlizzCon 2016: Foundations for the Future. Youtube. Accessed 2016-11-05.
  20. 20.0 20.1 20.2 20.3 20.4 20.5 Blizzard Entertainment. StarCraft II: Legacy of the Void Map Editor. (Activision Blizzard) (in English). November 10, 2015
  21. Blizzard Entertainment. StarCraft II: Legacy of the Void beta. (Activision Blizzard) (in English). March 31, 2015
  22. 2017-01-25, StarCraft on Twitter. Twitter, accessed on 2017-30-01

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