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This article has been verified for the current PC version (2.7) of the game.

Guardians are extremely powerful Spaceborne aliens added in various DLCs. They can be found in special predetermined systems and rival moons in size and mass. They are marked with a skull icon both in the fleet power box and on the galactic map. Each guardian has a unique event chain. While one can just stumble over one during exploration, they can also be found with the help of the Curator Enclave. Guardians have an immense amount of health and should only be engaged mid-late game.

Guardians get various bonuses to make them stronger based on the game difficulty. AI empires will only attack a guardian if their fleet power is at least 40k.


Asteroid HivesEdit

The Hive asteroid belt

A random system in the galaxy will have an asteroid belt containing 5 unique crystalline asteroids with deposits of 6-8   Minerals and 6 unselectable asteroids with one of them producing a chirping-like sound. Entering the system for the first time will display an event window hinting that there's more to the system than meets the eye.

If the system is claimed with a Starbase the Asteroid Hives will awaken with the following MTTH based on the number of constructed mining stations:

Mining Stations 0 1 2 3 4 5
MTTH 100 years 33.3 years 11.1 years 3.7 years 1.2 years 0.4 years

The Asteroid Hives use only strike craft as their weapons. As a result carrier ships are the ideal counters as the Asteroid Hives have no point-defense themselves and launched strike craft will engage and destroy the enemy ones before attacking the guardians. In addition carrier ships have point defenses themselves.

Defeating all 6 Asteroid Hives will grant 500   Energy and 2000   Society research in addition to allowing the system to be safely mined.

Automated DreadnoughtEdit

Automated Dreadnought patrolling the empty system's asteroid belt

A random system in the galaxy with two habitable worlds will be defended by the Automated Dreadnought, an ancient warship of old locked in patrol mode. The Automated Dreadnought uses regular ship components and can be countered appropriately:

Weapons Utility Core
  •   2 Launcher T2
  •   5 Plasma T3
  •   3 Plasma T3
  •   2 Disruptor T3
  •   3 Point-Defense T3
  •   6 Armor T5
  •   6 Shields T5
  •   3 Shield Capacitor
  •   2 Regenerative Hull Tissue
  •   Tachyon Sensors
  •   Jump Drive
  •   Sapient Combat Computer (Line)
  •   Impulse Thrusters

Defeating the Automated Dreadnought gives the following two choices:

  1. Salvage the dreadnought for 5000   Energy and   Minerals and 1000-5000   Engineering research.
  2. Issue a special project to repair and use it that costs 50000   Engineering research. Its Jump Drive will be upgraded to a Psi Jump Drive if the empire has the technology.

Dimensional HorrorEdit

Dimensional Horror emerging in the current dimension

A random black hole system in the galaxy will appear empty on sensors but reveal the Dimensional Horror when first entered, a nightmarish creature that entered only partially in the current dimension. The guardian cannot move but its tentacles can strike across the entire system. Its weapons ignore armor but do -75% damage to shields. The Dimensional Horror has no evasion, making the long-ranged Kinetic Artillery or size X weapons the ideal counter.

Defeating the Dimensional Horror will leave behind a dimensional rift with a special project that takes 140 days to be researched. Once examined, it will give the following rewards:

  • 4000-6000   Physics Research
  • 4000-6000   Society Research
  • Unlock the   Jump Drive technology with 50% progress if not already researched

Enigmatic FortressEdit

Ancient Vault with all defenses

A random class A star system in the galaxy will house the Enigmatic Fortress, a massive space station guarded by numerous unique defense platforms. The Enigmatic Fortress uses regular components and can be countered appropriately. The installation consists of the following stations:

1 Ancient Vault 2 Ancient Guardian 2 Ancient Warden 4 Ancient Defender 8 Ancient Sentinel
  •   7 Artillery T2
  •   8 Shield T6
  •   7 Armor T5
  •   1 Enigmatic Decoder
  •   1 Shield Capacitor
  •   Reactor T6
  •   Sensor T4
  •   1 Artillery T2
  •   1 Autocannon T3
  •   1 Point Defense T3
  •   8 Shield T6
  •   4 Armor T5
  •   1 Enigmatic Decoder
  •   1 Shield Capacitor
  •   Reactor T6
  •   Sensor T4
  •   1 Artillery T2
  •   1 Autocannon T3
  •   4 Shield T6
  •   3 Armor T5
  •   1 Shield Capacitor
  •   Reactor T6
  •   Sensor T4
  •   1 Autocannon T3
  •   1 Point Defense T3
  •   2 Shield T6
  •   2 Armor T5
  •   2 Shield T6
  •   1 Shield Capacitor
  •   Reactor T6
  •   Sensor T4
  •   1 Autocannon T3
  •   1 Armor T5
  •   4 Shield T6
  •   1 Shield Capacitor

Defeating the Enigmatic Fortress will start a lengthy event chain that must be completed to gain its rewards. Letting the timer expire at any point will result in the vault repowering.

No. Choice Outcome
1 Demolitions Team (1 army transport) Expedition proceeds but the army is lost
Local Power Surge - Go with the higher estimate (-500   energy) Vault repowers
Local Power Surge - Go with the lower estimate (-50   energy) Expedition proceeds
2 Place metal rings around the remaining two poles Vault repowers
Search for torus-shaped indentations on the bulkhead Vault repowers
Rearrange the metal tori on the poles Expedition proceeds
Remove center and rightmost poles from the pedestal Vault repowers
3 Home System Research - The beginning Vault repowers
Home System Research - The middle Event success
Home System Research - The end Vault repowers
Supply Dark Matter (-10   Dark Matter) Event success
Use Force (1 military ship) Event failed - the vault and all ships in the system are destroyed, every habitable planet is turned into a Tomb world and every uninhabitable one into a Molten world.
Black Hole Research (special project) Event success

Successfully investigating the Enigmatic Fortress will grant 1000-5000   Research across all fields as well as unlock the   Enigmatic Encoder and   Enigmatic Decoder technologies.

Ether DrakeEdit

Ether Drake

A random class F star system in the galaxy will feature a   Molten World called Dragon's Hoard guarded by the Ether Drake, a dragon-like guardian the size of a moon. The Ether Drake uses only energy weapons that do -20% damage to shields and has high hull and armor but no shields itself. As a result shielded fleets equipped with energy weapons are the ideal counter. Initially the Ether Drake will stay and guard Dragon's Hoard but should it be attacked enough to lose 20% HP it will go to two random systems belonging to the attacker and destroy their starbases. After the Ether Drake leaves if the systems were colonized the starbases will be rebuild into frontier outposts. If the Ether Drake loses 85% HP it will stay or retreat to Dragon's Hoard and heal.

Defeating the Ether Drake grants the following rewards:

  • 300   Influence
  • The Empire Capital gains the unique   Dragonslayer Monument planetary feature
  • The Empire gains the   Ether Drake Trophy Relic
  • If an Admiral was leading the fleet that defeated it, it will gain the   Dragonslayer trait
  • The Dragon's Hoard, which outputs 30   Energy and 30   Minerals. Building a mining station above it will reveal the following within 50 years:
    • Remains of the Ether Drake's mate: The remains can be studied to unlock the   Artificial Dragonscales, which is the best armor in the game. Alternatively, it can be grinded for 100-4000   Minerals and 1000-5000   Society research.
    • Ether Drake's egg: The egg can be smashed for 300   Influence or used in a timed special project that takes 50000   Society research to hatch a controllable Ether Hatchling with about 7K Fleet Power. Unlike the controllable Space Amoeba, the Ether Hatchling will never grow to a full sized Ether Drake.

Infinity MachineEdit

Infinity Machine orbiting Gargantua

A black hole system in the galaxy named Gargantua will house the Infinity Machine, the only guardian in the game that's not hostile. At first no interaction with the Infinity Machine is possible but a year or two after being discovered the guardian will send a transmission and start a special project that requires 360 days and at least a level 3 scientist leader to be finished. Completing the special project allows the following options:

  •    Materialist empires can attempt to hack the Infinity machine. Chance is 50% and if successful it permanently grants a +5%   Research Output empire modifier as well as either the   Positronic AI or the   Zero Point Power technology. If both were already researched it will grant 1000-5000   Society research. For   Gestalt Consciousness empires this is the only option. This approach destroys the Infinity Machine.
  •    Spiritualist empires can declare the Infinity Machine a divine object, granting a +5%   Happiness empire modifier.
  •    Militarist empires can destroy the Infinity Machine with an army without fighting it to gain the same bonuses as when defeating it.
  • All empires can communicate with the infinity Machine after the special project is completed.    Militarist and   Fanatic Egalitarian empires can try saying the liar's paradox but the guardian merely finds paradoxes boring. The empire can offer to help it and start a special project that requires 1800 days and at least a level 5 scientist leader to be finished. Finishing the project will have one of the following outcomes.
    • 50%: the project fails but the Infinity Machine will reward the empire with the   Positronic AI technology. If already researched it will grant the   Zero Point Power technology. If both were researched it will grant the empire a +5%   Research Output empire modifier.
    • 25%: the project succeeds and the Infinity Machine enters the black hole. It will grant the   Positronic AI technology. If already researched it will grant the   Zero Point Power technology. If both were researched it will grant 150   Influence. In addition the black hole will get a 4   Research deposit.
    • 25%: the project succeeds and the Infinity Machine enters the black hole and shrinks it to a smaller size renamed Pantagruel which will get a 10   Research deposit. The empire will get 200   Influence and permanently gain the Mirror of Knowledge modifier (+10%   Research Speed). In addition a Curator Enclave can be contacted and given some info for 500   Engineering Research.

Alternatively the Infinity Machine can be attacked, forcing it to open and become aggressive. The guardian comes equipped with lasers, strike craft, heavy shields and regeneration components and has good evasion. As a result shielded fleets using kinetic weapons are the ideal counter. Destroying the Infinity Machine will allow it to be broken down for 700-4000   Minerals and 250-500   Influence. Alternatively empires that are not   Gestalt Consciousness can study its nature to permanently unlock the next tier of   Mechanical Pop research. Destroying the Infinity Machine removes any empire modifier.

Horizon SignalEdit

If the Horizon Signal event chain has been started entering the Gargantua system, whether it's the first time or not, will have the Infinity Machine initiate contact and ask you for 800   Energy and   Minerals. Refusing with either of the two options will have the guardian ask again next time a ship enters the system. Accepting will have the Infinity Machine blow itself up and add it a 10   Society Research deposit.

Spectral WraithEdit

650THz Spectral Wraith

The Spectral Wraith is a guardian that can only appear during the mid-game years. A random pulsar in the galaxy when surveyed will reveal a unique   Pulse Germination modifier. The first empire that surveys the pulsar will be shown an event window pointing to the date when the mid-game starts and hinting that is the system where the Spectral Wraith will spawn.

Unlike other guardians the Spectral Wraith is completely mobile and can travel anywhere in the galaxy. It will spawn in one of three colors: red, yellow or blue. In systems with a star of the same color the Spectral Wraith will gain -50%   Armor and   Evasion. Aside from this debuff, the color variation is purely cosmetic.


  • the hull has 20k Hitpoints, 10k Armor and a serious 75% Evasion. With aforementioned debuff reducing it to 5k Armor, 25% Evasion. Accordingly small Energy Weapons offer the right amount of Tracking and Anti-Armor Ability, but with the high hull/armor ratio just about any weapon can work
  • the Weapons deal 100% to hull, 200% to Armor, 50% to Shields, at 80% Accuracy, 75% Tracking
  • Destroyers or Cruisers with small to medium guns and heavy shields or crystal plating should be ideal and available
  • Defeating it is possible starting ~5k Fleet power, assuming a perfect countering built. With ~10k able to defeat it trivially even with suboptimal conditions like large guns and a pulsar system. This makes it one of the weakest Leviathans, but in turn catching it is usually the issue

Defeating the leviathan gives a permanent empire modifier with the following effects:

  •   +5% Physics Research Speed
  •   +5% Energy Weapons Damage
  •   +10% Energy from Jobs

Stellar DevourerEdit

Real scale of the Stellar Devourer

A random class M star system in the galaxy will appear empty on sensors but reveal the Stellar Devourer when entered, a glowing spaceborne entity that feeds upon stars. If the Stellar Devourer was engaged and did not lose at least 67% HP it will attack one of the attacker's systems until the starbase is disabled and then stay for 90 days until retreating. If the system is colonized all planets will get -25%   Happiness and   habitability until the guardian leaves.

Some of the Stellar Devourer's weapons are effective against armor while others are effective against shields, making no approach more or less effective. It has extremely high hull and point-defenses, making plasma weapons the most effective counter.

Defeating the Stellar Devourer will give the option to issue a special project to investigate its remains that takes 60 days to be finished. Once examined it will give the following options:

  1. Harvest the remains for a large bonus of   Energy,   Minerals and   Influence.
  2. Try to reignite the Sun in the leviathan's home System. The Project has a 30% chance to kill the scientist and its ship but is guaranteed to turn the whole System more habitable: All Frozen Planets will become Arctic planets, with one guaranteed Gaia World. All other planets undergo a temperature increase as well, rerolling them completely.

   Xenophobe and    Militarist empires have the option to instead gain the unique   Stellar Devourer Trophy planetary feature on the empire capital, as well as 500   influence.

Corrupted AvatarEdit

Corrupted Avatar

A randomly placed system with a wormhole will bring an event window when first entered, mentioning a signal coming out of the wormhole and hinting that this specific wormhole is different from the rest. Exploring the wormhole will reveal its connection to a trinary system in the galaxy with no hyperlane connections. Said system is guarded by a Corrupted Avatar. The Avatar uses only energy weapons that ignore armor but do -75% damage to shields. It has moderate hull and shields but no armor, making kinetic weapons very effective.

Defeating the Corrupted Avatar allows free access to the system, which contains a Gaia World which when surveyed will reveal a level V anomaly. Investigating the anomaly grants access to the   Neural Tissue Engineering technology to organic empires or 300-1000   Society research if   Machine Intelligence. The gas giant in the system will also have a   Exotic Gases deposit.

The Corrupted Avatar can be avoided by setting a science ship's stance to passive and guiding it around the guardian. This approach does not allow colonizing the Gaia World but it does allow the research reward to be claimed.

If a Sentry Array has been completed the system housing the Corrupted Avatar can be seen but cannot be entered with Jump Drives until the system has been entered via the wormhole first.

Unlike other guardians the Corrupted Avatar will always be present if the required DLC is installed. Its system is accessible only via a wormhole which will appear even if wormholes were disabled on game startup.

In the   Utopia DLC Corrupted Avatars can also appear for 10 years following Shroud failures. They have the same stats but do not grant any reward upon being defeated.

Tiyanki MatriarchEdit

Tiyanki Matriarch

A random system in the galaxy with a Gaia World and another habitable world will be home to the Tiyanki Matriarch, the eldest member of the species and the only one to be aggressive when approached. The Matriarch has two weapons - one that ignores armor and does -75% damage against shields and one that deals double damage against both shields and armor. It also has significant armor and very high hull but no shields and as a result should be engaged with energy weapons.

Defeating the Tiyanki Matriarch gives the following rewards:

  • Reth Unddol, a level 5 admiral with the unique   Hell's Heart trait.     Genocidal empires will kill him for 120-350   Unity instead.
  • AH4B, a battleship that can be used or scrapped for 1500   Minerals. It comes equipped with the following components:
Weapons Utility Core
  •   1 Missile T5
  •   1 Whirlwind Missile T2
  •   2 Torpedoes T3
  •   4 Plasma T3
  •   1 Autocannon T3
  •   4 Armor T5
  •   4 Shields T5
  •   1 Shield Capacitor
  •   1 Advanced Afterburners
  •   Hyper Drive III
  •   Advanced Combat Computer (Artillery)
  •   Plasma Thrusters

Defeating the Tiyanki Matriarch will breach the Galactic Law if the Tyianki Conservation Act Resolution was passed and the empire is a member of the Galactic Community. Doing so will also incur a fine of -5000   Energy Credits.



The Voidspawn is an unborn guardian, hidden within a size 20     Dry world orbiting a class G star. Within a year after the planet is colonized an event will mention how the planet has a pulse. Within the next half a year the planet will change its appearance, add 30   Devastation and create 3 Rifts Blockers. Within another half a year one of two things will happen. Either the pulse will stop or the planet will once again change its appearance, add 30   Devastation and create 3 Rifts Blockers. Should the latter happen the Voidspawn will hatch in a few months, destroying the colony and turning the planet into a Cracked World with a 20   Society Research deposit. A month later it becomes hostile.

The Voidspawn uses only guided weapons. It has high hull and armor but no shields, making energy weapons effective against it. Defeating the guardian grants 600-6000   Unity and brings the option to start a special project to research what was left of the egg planet that takes 140 days and grants the   Gargantuan Evolution technology.

If the Voidspawn did not hatch the planet will return to its original appearance once all Rifts Blockers are removed.

Scavenger BotEdit

Scavenger Bot in the debris field

A random class M Red Giant star system will contain an ancient battlefield debris field patrolled by the Scavenger Bot, an ancient construct constantly scrounging the debris field for new parts.

The guardian uses only guided weapons. It uses equal amounts of shields and armor but has no point-defense and barely any evasion, making both guided weapons and strike craft very effective against it.

Defeating the Scavenger Bot grants the   Nanite Repair System technology, as well as two random       tier V component techs or a large amount of   Engineering research if all techs were already researched.

Additionally the system has two broken worlds that bring in total 20   Minerals when mined.



Shard is a guardian that fights identically to the Ether Drake. She appears upon the conclusion of the Kleptomaniac Rats Archaeology Site excavation. Defeating her grants the   Rubricator Relic.

If the Relic World is colonized the guardian will destroy the colony in two years if it's not defeated.

As the excavation already requires claiming the system, the starbase can be upgraded into a bastion citadel in preparation for the fight. Alternatively the final Chapter of the site can be delayed to better prepare technologically.