Observer (StarCraft II)

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Observer

Unit

Race

Protoss

Affiliation

Daelaam

Role

Flying spy

Properties

Sight

11 (17 in Observation Mode)

Production

Minerals

25

20 (Down to 10 with Network Administrator) (Co-op Fenix)
50 (WoL campaign)

Gas

75

60 (Down to 30 with Network Administrator) (Co-op Fenix)
100 (WoL campaign)

Build time

Versus:

18
Campaign and Co-op:
Robotics facility:
40 (WoL Campaign)
30
Warp robotics facility:
5 (30 charge cooldown) (Campaign)
0.5 (30 charge cooldown) (Co-op Artanis)

Produced from

Robotics facility

Warp robotics facility (Campaign and Co-op Artanis)

Movement

Speed

2.82 (4.23 with Gravitic Boosters) (Versus)

1.88 (2.82 with Gravitic Boosters) (Co-op)

Acceleration

2.125 (3.1875 with Gravitic Boosters)

Lateral
acceleration

0

Deceleration

0

Collision radius

0.5

Protection

Shields

30 (Versus)

20 (Campaign and Co-op)Mastery: +0.2 sp per Combat Unit Life and Shields mastery point. Up to a maximum 26 (Co-op Karax)
10 (Co-op Fenix with Network Administrator)

Shield
regen/second

2

Hit points

40

Mastery: +0.4 hp per Combat Unit Life and Shields mastery point. Up to a maximum 52 (Co-op Karax)
20 (Co-op Fenix with Network Administrator)

Armor

0

Type

Armor type

Light

Miscellaneous

Notes

Permanently cloaked

"Ah, this faithful Observer has kept watch since the evacuation. Its abilities will certainly prove useful now."

- Zeratul^(src)

The observer reprises its role as a stealthy detector.

Game Unit[]

Versus[]

Upgrades and Abilities

Air Armor

Increases protoss air unit armor.

Acquisition

Purchased from	Cybernetics Core
Hotkey	A

Level 1

Cost	100 100 129

Level 2

Cost	175 175 154
Required	Fleet beacon

Level 3

Cost	250 250 179
Required	Fleet beacon

v • e

Plasma Shields

+1 armor to shields per level.

Acquisition

Purchased from	Forge
Hotkey	S

Level 1

Cost	150 150 121.6

Level 2

Cost	200 200 144.6
Required	Twilight council

Level 3

Cost	250 250 167.9
Required	Twilight council

v • e

Gravitic Boosters

Increases observer movement speed by 1.31.

Acquisition

Purchased from	Robotics bay
Hotkey	B

Cost	100 100 57

v • e

Detector

This unit or structure can detect cloaked, burrowed, duplicated and hallucination enemies.

v • e

Permanent Cloaking

This unit is permanently cloaked. They cannot be seen or directly attacked by enemy forces, unless they have detector support.

v • e

Surveillance Mode

The observer can switch to Surveillance Mode. In Surveillance Mode the observer is immobile and gains 50% increased sight radius. Can switch back to Observer Mode to move again.

Usage

Hotkey	E (Surveillance Mode) T (Observer Mode)
Cost	3

v • e

Legacy of the Void[]

The observer is not available during the campaign; detection is never required.

Co-op Missions[]

Artanis, Karax, and Fenix, are able to build observers in Co-op Missions. In Patch 3.1, Artanis's observers gained the Surveillance Mode ability.

Zeratul uses a variant of the observer called the Xel'naga watcher.

Artanis Upgrades and Abilities

Detector

This unit or structure can detect cloaked, burrowed, duplicated and hallucination enemies.

v • e

Permanent Cloaking

This unit is permanently cloaked. They cannot be seen or directly attacked by enemy forces, unless they have detector support.

v • e

Surveillance Mode

The observer can switch to Surveillance Mode. In Surveillance Mode the observer is immobile and gains 50% increased sight radius. Can switch back to Observer Mode to move again.

Usage

Hotkey	E (Surveillance Mode) T (Observer Mode)
Cost	3

v • e

Gravitic Boosters

Increases observers movement speed.

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Robotics bay
Hotkey	B

Cost

50

60

v • e

Protoss Air Armor

Increases the armor of protoss air units.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Cybernetics core
Hotkey	G

Level 1

Cost	100 100 160
Effect	Armor: 1

Level 2

Cost	175 175 190
Required	Fleet beacon
Effect	Armor: 2

Level 3

Cost	250 250 220
Required	Fleet beacon
Effect	Armor: 3

v • e

Protoss Plasma Shields

Increases the shield armor of all protoss units and structures.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Forge
Hotkey	A

Level 1

Cost	100 100 160
Effect	Shield armor: 1

Level 2

Cost	175 175 190
Required	Twilight council
Effect	Shield armor: 2

Level 3

Cost	250 250 220
Required	Twilight council
Effect	Shield armor: 3

v • e

Karax Upgrades and Abilities

Detector

This unit or structure can detect cloaked, burrowed, duplicated and hallucination enemies.

v • e

Permanent Cloaking

This unit is permanently cloaked. They cannot be seen or directly attacked by enemy forces, unless they have detector support.

v • e

Surveillance Mode

The observer can switch to Surveillance Mode. In Surveillance Mode the observer is immobile and gains 50% increased sight radius. Can switch back to Observer Mode to move again.

Usage

Hotkey	E (Surveillance Mode) T (Observer Mode)
Cost	3

v • e

Gravitic Boosters

Increases observers movement speed.

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Robotics bay
Hotkey	B

Cost

50

60

v • e

Protoss Air Armor

Increases the armor of protoss air units.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Cybernetics core
Hotkey	G

Level 1

Cost	100 100 160
Effect	Armor: 1

Level 2

Cost	175 175 190
Required	Fleet beacon
Effect	Armor: 2

Level 3

Cost	250 250 220
Required	Fleet beacon
Effect	Armor: 3

v • e

Protoss Plasma Shields

Increases the shield armor of all protoss units and structures.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Forge
Hotkey	A

Level 1

Cost	100 100 160
Effect	Shield armor: 1

Level 2

Cost	175 175 190
Required	Twilight council
Effect	Shield armor: 2

Level 3

Cost	250 250 220
Required	Twilight council
Effect	Shield armor: 3

v • e

Fenix Upgrades and Abilities

Detector

This unit or structure can detect cloaked, burrowed, duplicated and hallucination enemies.

v • e

Permanent Cloaking

This unit is permanently cloaked. They cannot be seen or directly attacked by enemy forces, unless they have detector support.

v • e

Surveillance Mode

The observer can switch to Surveillance Mode. In Surveillance Mode the observer is immobile and gains 50% increased sight radius. Can switch back to Observer Mode to move again.

Usage

Hotkey	E (Surveillance Mode) T (Observer Mode)
Cost	3

v • e

Gravitic Boosters

Increases observers movement speed.

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Robotics bay
Hotkey	B

Cost

50

60

v • e

Protoss Air Armor

Increases the armor of protoss air units.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Cybernetics core
Hotkey	G

Level 1

Cost	100 100 160
Effect	Armor: 1

Level 2

Cost	175 175 190
Required	Fleet beacon
Effect	Armor: 2

Level 3

Cost	250 250 220
Required	Fleet beacon
Effect	Armor: 3

v • e

Protoss Plasma Shields

Increases the shield armor of all protoss units and structures.

Usage

Passive

Campaign Acquisition

Unlock

Initially available.

Acquisition

Purchased from	Forge
Hotkey	A

Level 1

Cost	100 100 160
Effect	Shield armor: 1

Level 2

Cost	175 175 190
Required	Twilight council
Effect	Shield armor: 2

Level 3

Cost	250 250 220
Required	Twilight council
Effect	Shield armor: 3

v • e

Development[]

The following section contains information from a previous version of StarCraft II which is no longer valid.

In a September 2008 build of StarCraft II, the observer did not require an observatory to build, making it available earlier in the tech tree than in StarCraft. It was upgraded at the null circuit.^[1]

The observer's surveillance mode ability was introduced to offset how observers were often sent alongside the rest of a protoss army with the use of the "F2" command when the player wanted them to remain in place.^[2]

Images[]

Skins

Portraits

References[]

↑ Karune. 2008-09-05. StarCraft II Q&A - Batch 44. Battle.net StarCraft II General Discussion Forum. Accessed 2008-09-05.
↑ 2017-08-17, StarCraft II Multiplayer - Major Design Changes. Blizzard Entertainment, accessed on 2017-08-20.

Protoss Units and Structures of StarCraft II

v • e

Versus units and structures

Infantry

Land mechanized

Air units

Basic buildings

Automated defenses

Advanced buildings

Campaign and
Co-op Missions
units and structures

Units

Automated defenses

Variant units

Melee Warrior
- Zealot (Aiur)
- Centurion (Nerazim)
- Sentinel (Purifier)

Ranged Warrior
- Adept (Purifier)
- Dragoon (Aiur)
- Stalker (Nerazim)

Cloaked Warrior
- Avenger (Aiur)
- Blood Hunter (Tal'darim)
- Dark templar (Nerazim)

Psionic Warrior
- Ascendant (Tal'darim)
- Dark archon (Nerazim)
- High templar (Aiur)

Robotic Assault
- Annihilator (Nerazim)
- Immortal (Aiur)
- Vanguard (Tal'darim)

Robotic Support
- Energizer (Purifier)
- Havoc (Tal'darim)
- Sentry (Aiur)

Robotic Siege
- Colossus (Purifier)
- Reaver (Aiur)
- Wrathwalker (Tal'darim)

Starfighter
- Corsair (Nerazim)
- Mirage (Purifier)
- Phoenix (Aiur)

Capital Ship
- Carrier (Aiur)
- Tal'darim Mothership
- Tempest (Purifier)

Assault Ship
- Arbiter (Aiur)
- Destroyer (Tal'darim)
- Void ray (Nerazim)

Canceled Protoss Units and Structures of StarCraft II v • e
Scrapped Removed units Arachnipod Defender Escort Lancer Mega archon Protoss artillery Purifier scout Replicant Signifier Skylord Skytalon Soul hunter/purifier Soul reaver Shadow archon Shaman Shuriken Stasis orb Tornado Twilight archon Void star Removed buildings Eye of Adun Observatory Phase cannon War beacon War shrine Warp beacon