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Zergling/Infestor/Ultralisk (vs. Zerg)

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[e][h]ZergZergling/Infestor/Ultralisk vs. Zerg
Strategy Information
Popularized by:


The Spaghetti Zerg Build is designed around using the low cost of Zerglings to your advantage by banking gas for Infestors, upgrades and eventually Ultralisks while still applying pressure and defending your bases. The upgraded Zerglings offer mobility and can deny the third of your opponent, while Infestors help you arrive safely at Hive Tech vs. Roaches, Mutalisks, and Banelings. Ultralisks are very strong vs. both Infestors and Roaches and are a great compliment to a Zergling Infestor army as Fungal Growth will keep the roaches from Kiting your Ultras and Zerglings.


This is a defensive build which aims at reaching Hive Tech safely with mass Zerglings, Infestors and Ultralisks with superior upgrades.

Basic Build Order[edit]

The build is a rough outline and modifications should be made depending on what your opponent is producing. As always Overlord positoning and Zergling scouting is important to avoid droning blindly versus an all-in strategy.

"Ling/Infestor into Ultralisk"


  • Use the gas as timings for the next Tech level when you feel safe.
  • When engaging Roaches, be sure to get as much surface area on the Roaches as possible, and avoid engaging Roaches which are in chokes or against walls.
  • It takes 2 Banelings to kill Zerglings who have an Carapace Upgrade advantage over the Baneling's attack.
  • Fungal Growth will be almost useless on the Ultralisks as their passive Frenzied ability prevents the snare and the 40 damage is negligible considering the Ultralisk's health pool.


  • If you choose to Drone scout and see a Hatchery first, attempt to block the Hatchery to make up for lost mining time.
  • Scout to make sure that there is no early Spawning Pool, if your Drone scout sees a hatch first, you should be safe to get your gas before pool.
  • Position Overlords outside their Natural Expansion, over Attack Paths and outside your own Natural Expansion, as the effectiveness of Zerglings depends heavily on how you position your army.



Vs. Speedling or Speedling/Baneling All In

Use defensive Banelings and one to two Spine Crawlers to hold, be sure to scout their gas and prepare as needed.

Vs. +1 Roach All In

Use spinecrawlers and maximize surface (preferably a complete surrond) area for your Zerglings in order to beat a +1 roach attack. If he adds Zerglings build banelings of your own to counter them.

Vs. Roach/Bane

Use Spine Crawlers and Banelings of your own to kill his Banelings, then engage with your Zerglings, getting the best surround you can to kill the remaining roaches. Micro your Zerglings by splitting to ensure that you don't lose all of your Zerglings to a few Banelings.

Vs. Mutalisk Openers

Early upgrades help the lings harras the Mutalisk player by killing an early third, drones, queens and take pressure off until sporecrawlers are finished and Infestors pop out.

Build 3-4 safety spores and additional queens if the opponent is committing heavily to Mutalisks.


Pro features[edit]

Open areas with opportunities for surrounding, flanking and good counter attack paths are excellent for Zergling harassment. Remember that a larger map favors your faster Zerglings and makes it easy to see a push coming and prepare on time.

Maps where Brood Lords are not viable because of the wide, open spaces and lack of cliffs or high ground usually favor Zergling Infestor Ultralisk, because of how easy it is to flank your opponent with Zerglings and Ultralisks and come in for large surrounds.

Con features[edit]

Short rush distances let your opponent catch you unaware, and narrow chokes make surrounding Roaches difficult, so your Zerglings become less effective.

Replays & VODs[edit]

South Korea Zerg DongRaeGu DongRaeGu plays Infestor, Zergling & Ultralisk versus Leenock's Spire opening.
South Korea Zerg Leenock
Date: 2012-07-20
Patch: 1.4.3 VOD
Zerg Blade Demonstration of how to handle Mutalisks with this style.
Date: 2012-06-15
Patch: 1.4.3 Replay
Zerg MrDicey Demonstration of this style played against an aggressive Roach style.
Zerg Blade
Date: 2012-06-15
Patch: 1.4.3 Replay
Zerg Blade A game where a Roach/Speed Baneling attack is held with Zergling/Infestor.
Zerg RoHKieds
Date: 2012-06-15
Patch: 1.4.3 Replay