Download the Liquipedia app here!Download the Liquipedia app to follow Brood War!Want personalized updates on Brood War esports? Download the Liquipedia app on iOS or Android to never miss your favorite tournaments and matches!
Liquipedia app match pages updated! Liquipedia app match pages are overhauled! Download on Android or iOS! Liquipedia app's match pages got completely revamped with game data, standings, VODs and more! Download the the latest version on iOS or Android and read our update blog here.

Upgrades

From Liquipedia StarCraft Brood War Wiki

Upgrades include anything that improves the functionality of your units. There are numerical upgrades and qualitative upgrades. For a strategical look on Upgrades, consult The Importance of Upgrades. While building, upgrades can be cancelled for a full refund. If the building upgrading dies during the upgrade, only 75% of the cost is refunded.

Numerical Upgrades[edit]

Numerical Upgrades have three tiers with equal effects but increasing cost. They affect a class of units, increasing their damage or survivability. For all races, air and ground units are treated seperately. For Terran, ground units are split into mechanic and bionic. For Zerg, ground attack upgrades are split into melee and ranged.

Numerical Upgrades are performed in a single generalized building. Qualitative Upgrades are most frequently available at the building that enables the construction of the unit. (e.g. Observer Upgrades at Observatory, Ultralisk Upgrades at Ultralisk Cavern).

There are two kinds of Numerical Upgrades, attack and armor. Armor Upgrades are more expensive than Attack Upgrades of the same tier.

Attack Upgrades[edit]

These increase the damage dealt by all units of the class by [number of upgrades] * x, where x is some attack modification specific to each unit. The magnitude of x is roughly determined by the unit's base damage, divided by 10. E.g. Archons gain +3 Damage, since their basic damage is 30, while Marines gain +1, since their basic damage is 6. Some units upgrade better than others. For example, the Goliath's anti-air base damage is 20 with +4 per upgrade, while a Dragoon's base damage is also 20 with only +2 per upgrade.

Armor Upgrades[edit]

Each Armor Upgrade increases the armor of a class of units by +1. Most unit classes have a singular attack upgrade and a singular defense upgrade, except for the Protoss: Here, ground units and air units have seperate defensive upgrades, but a shared shield upgrade, which is even more expensive than the armor upgrade.

Upgrade Buildings[edit]

Qualitative Upgrades[edit]

  • Qualitative Upgrades, in most cases, affect how units function apart from their numerical combat effectiveness.

Speed Upgrades[edit]

  • Metabolic Boost: Zergling +50% 100 100 63
  • Muscular Augments: Hydralisk +50% 150 150 63
  • Pneumatized Carapace: Overlord +400% 150 150 83.79
  • Anabolic Synthesis: Ultralisk +50% 200 200 83.79
  • Gravitic Drive: Shuttle +50% 200 200 104.58
  • Gravitic Thrusters: Scout +33% 200 200 104.58
  • Gravitic Boosters: Observer +50% 150 150 83.79
  • Leg Enhancements: Zealot +50% 150 150 83.79
  • Ion Thrusters: Vulture +50% 100 100 63

Range Upgrades[edit]

  • Grooved Spines: Hydralisk +1 to 5 150 150 63
  • Singularity Charge: Dragoon +2 to 6 150 150 104.58
  • U-238 Shells: Marine +1 to 5 150 150 63
  • Charon Boosters: Goliath +3 air weapons to 8 100 100 83.79
  • Siege Tech: Gives the Siege Tank Siege Mode, which boosts range +5 to 12. (Also classified as an Other Upgrade) 150 150 50.4

Caster Upgrades[edit]

Sight Upgrades[edit]

  • Increases the sight and detection range of a specific unit by 2 (from 9 to 11 except the Scout which is 8 to 10):
  • Antennae (Overlord) 150 150 83.79
  • Sensor Array (Observer) 150 150 83.79
  • Apial Sensors (Scout) 100 100 104.58
  • Ocular Implants (Ghost) 100 100 104.58

Capacity Upgrades[edit]

  • Reaver Scarabs: 5 --> 10 200 200 104.58
  • Carrier Interceptors: 4 --> 8 100 100 63

Other Upgrades[edit]

  • Evolve Lurker Aspect: Hydralisks gain the ability to morph into Lurkers. 200 200 75.6
  • Chitinous Plating: Ultralisk armor is increased by +2 in addition to the regular armor upgrades. 150 150 83.79
  • Ventral Sacs: Overlords gain the ability to carry and drop ground units. Like all drop units this has 8 slots. 200 200 100.8
  • Adrenal Glands: Zerglings get an upgrade to increase their rate of attack. 200 200 63
  • Scarab Damage: The Reaver increases its Scarab damage by 25, to 125. 200 200 104.58
  • Siege Tech: Siege Tanks gain the abilitiy to change to Siege Mode, increasing their range and damage while remaining stationary. 150 150 50.4
  • Spider Mines: Vultures gain 3 Spider Mines that can be set in the ground. 100 100 50.4
  • Stim Pack Tech: Marines and Firebats get increased movement speed and rate of attack for a limited amount of time at the cost of 10 health. 100 100 50.4
  • Arm Nuclear Silo: Ghosts gain the ability to launch a Nuke on a target spot. 200 200 63 / for each Nuke