The Doorway

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This article is for the PC version of Stellaris only.

Event chains

Events

Empire event chains

Habitable Worlds Survey

Comet Sighted

Fleet Maneuvers

Horizon Signal

Mass Extinction Through the Ages

Radical Cult

Sublight Exploration Probes

Wanderlust: Rogue Scientist

The Hunt for the Hyacinth

 Fountain of Youth

 Genetic Crossroads

 On the Shoulders of Giants

 Homesick

 The Cost of Freedom

 The Fear of the Dark

 The Guest

Anomaly event chains

Drifting Battlefield

Gas Giant Signal

Impossible Organism

Limbo

Orbital Speed Demon

Shrines to the Old Gods

The Ransomeers

 42 Years and 3 Days

 Lost Amoeba

Colony event chains

A New Species

Abandoned Terraforming Equipment

Ancient Drones

Dancing Plague

Feral Overload

Hidden Vault

Impossible Corrie

Metallic Puddles

Mharin Kharin

Migrating Forests

Mushroom Picking

Myrmeku Activity

Nemma World

Rise of the Manifesti

Subterranean Civilization

**The Doorway**

Underground Vault

Unexpected Mineral Seams

Primitive civilization event chains

Anti-Alien Task Force

Missing Scientist

Rogue Agent

Shuttle Crash

 Propulsion Proponent Proclamation

The Doorway is a colony event chain that has a very small chance to trigger 2 or 3 years after any colony has been founded. It offers either mutually exclusive paths, determined at random, or the Plight of the Beta-Universe situation, which the IDs for the events in the event chain are 9800, 9805, 9810, 9815, 9820, 9821, 9822, 9840, 9850, 9851, 9855, 9860, 9865, 9866, 9870, and 9875,

If  Overlord is installed the event can also be triggered by the Sign of the Visitor situation.

### The Doorway

*What can only be described as a dimensional portal has been discovered in a remote location on [colony name]. Weather prediction algorithms noticed a strange air current, which was eventually determined to be caused by the slight leakage of atmosphere into the portal. The rate of loss is far too small for it to make any difference to life on [colony name], but the very existence of this portal raises some disturbing questions, such as where does it lead to, and could something come through the portal from the other side?*

**Intriguing.*** Adds a  Portal Research Area planetary feature to the colony
* Issue special project: Probe the Dimensional Portal on [colony name]

The special project leads to a random choice of the following events:

* *“A Dimension of Suffering”*
* *“High-Energy Dimension”*
* *“The Null Void”*
* *“Mirror Mirror”*
* *“A Dimension of Static”*

The chance of each is equal, except the last has half the probability of happening and can't happen if any of the following is true:

* the empire's homeworld is artificial (habitat, ring world, shattered ring, ecumenopolis, hive world, machine world, or relic world)
* the empire doesn't own its homeworld
* the empire has had this outcome before
* the empire isn't a player

## A Dimension of Suffering

### A Dimension of Suffering

 **The below description is one of several available for this event.**

*The Dimensional Portal on [colony name] seems to lead to a realm which is opposed to the sapient mind on a fundamental level. Any and all contact with material from this dimension causes intense suffering in the subject, which if continued for more than a few minutes leads to intense suicidal urges coupled with attempts to mutilate their sensory organs. Even simply studying data recorded in the strange dimension causes intense discomfort in the biological observer, and cascading errors in computer systems.*

The Doorway

Option conditions
 **Enabled if:**
the empire is *not* some degree of  Spiritualist

**Find a way to close the portal!**
* Issue special project: Close the portal!
* The special project requires  **1500** Physics research and triggers the event *“Doorway Closed” (science)* when completed

 **Enabled if:**
the empire is *not* some degree of  Spiritualist

 **Try filling the portal with rocks!**
* Issue special project: Close the portal!
* The special project requires  **1000** Engineering research and triggers the event *“Doorway Closed” (rocks)* when completed

 **Enabled if:**
the empire does *not* have the  Psionic Theory tech

 **Pray for a solution**
* Issue special project: Close the portal!
* The special project requires  **1000** Society research and triggers the event *“Doorway Closed” (prayer)* when completed

 **Enabled if:**
the empire is some degree of  Spiritualist

 **Perhaps Psionics is the solution?**
* Issue special project: Close the portal!
* The special project requires  **750** Society research and triggers the event *“Doorway Closed” (prayer)* when completed

 **Send our best knight in!**
One of the following at random:
* 15% chance: nothing happens
* 25% chance (0% if game difficulty is set to Civilian): trigger event *“The Dark Knight”* in about 10 years
* 20% chance: trigger event *“To Hell and Back”* in about 10 years
* 40% chance: trigger event *“Dimensional Refugees”* in about 10 years

**Study the Portal*** The Dimensional Portal Area remains.
* *The Dimensional Portal can be studied on an ongoing basis.*

### Doorway Closed (science)

*The Portal was determined to be able to handle almost unlimited energy input, but the key word is "almost". By generating energy at an unprecedented scale and continuously bombarding the Portal, it was eventually possible to cause it to overload and collapse in on itself. Needless to say, the generation of vast amounts of energy has the potential to be useful in other areas.*

**Excellent.*** Physics research gained:  **90–10 000**
* File:Tech power plant 2.pngFile:Tech power plant 4.png Unlocks the next tier of generator district technology
* *The Portal site can still be studied, but it will provide less useful data.*

### Doorway Closed (rocks)

 *Sometimes a simple answer is the best answer. After blasting several mountains into gravel and dumping the result into the portal, it seems to have been overloaded. Or, perhaps, was deliberately shut down. Regardless, the remaining material was dumped on top of the site in case it ever re-opens. The experience of such a large engineering and mining project will also prove useful in other areas.*

* Feudal Society civic

**Excellent.*** Engineering research gained:  **90–10 000**
* Unlocks the next tier of mining district technology
* *The Portal site can still be studied, but it will provide less useful data.*

### Doorway Closed (prayer)

 **The below description is one of several available for this event.**

*The Portal seemed to react in some way to the thoughts of nearby observers, some more than others. Through a process of elimination it was possible to find a large number of people who were especially potent at influencing the Portal, and together they were able to effectively will the Portal to close. The experience was enlightening and provides strong evidence that it is possible to harness and direct belief in tangible ways.*

* Spiritualist or  Fanatic Spiritualist

**Excellent.*** Society research gained:  **90–10 000**
* Gain 80% progress towards the Psionic Theory technology and add it as a permanent option, if it's not already available
* Gain 50% progress towards the Psionic Barrier technology, and add it as a permanent option

*The Portal site can still be studied, but it will provide less useful data.*

### The Dark Knight

File:Evt open revolt.png
*Knight [random name], whom we sent through the portal on [colony name] years ago, has returned. Twisted and darkened, [he or she] led a host of horrors through the portal and immediately assaulted our colony. Survivors reported hearing [him or her] erupt in a demonic cackle, claiming [he or she] would soon conquer this dimension.*

* Knights of the Toxic God origin
* Game difficulty is not Civilian
* 25% chance, if the unique option was chosen

**Sound the alarm!*** *The Portal site can still be studied, but it will provide less useful data.*
* 3 powerful armies invade the colony

### Daemonic Incursion

File:Evt open revolt.png
*The horrors that Knight [knight name] led through the portal have breached our defenses and conquered [colony name]!

Possessed by a major dimensional being and now titling [himself or herself] as [Lord Purifier or Lady Purifier] [ruler name], [he or she] has called upon [his or her] demonic forces to begin the conquest of our galaxy!

Additional portals briefly opened throughout the system, but the strain on reality was too great a burden. All the singularities soon collapsed, severing the demonic host from their home dimension. Undeterred, [ruler name] is now consolidating [his or her] power base before proceeding with [his or her] plans of galactic conquest.*

 Immediate effects:* The Daemonic Incursion unique empire will spawn with the  Fanatic Purifiers and  Scavengers civics, high resources, a fleet that scales with the new empire's  naval capacity, a level 5 leader with the  Chosen One and  Warlike traits, and all researched technologies, and take control of the system
* The colony gains 28 pops of the main species

**We shall defeat these invaders!**

 Effects after selecting any option:
Removes the  Portal Research Area planetary feature from the colony

### To Hell and Back

File:Evt zro 3.png
*Knight [random name], whom we sent through the portal on [colony name] years ago, has returned. [he or she] bested many a challenge, felled countless fiends and narrowly avoided [him or her] doom, but ultimately, nothing could stand in [his or her] way. [he or she] brought back many trophies and has become a legend amongst the squires, who have begun calling [him or her] "Doomslayer".*

* Knights of the Toxic God origin
* 20% chance, if the unique option was chosen

**Doomslayer is truly brave, ferocious and gallant!*** **Trophies of the Doomslayer** empire modifier added
* (hidden) *The Portal site can still be studied, but it will provide less useful data.*

### Dimensional Refugees

*The portal on [colony name] where we sent Knight [random name] years ago is showing intense signs of activity as ragged civilians appear to be attempting to cross into our dimension. They report that Knight [knight name] has been rampaging in their dimension for a decade now, mercilessly slaughtering everyone crossing [his or her] path. [He or she] slew so many inhabitants of that dimension that a doom has befallen their society. The survivors are trying to flee anywhere they can. Could the existential pain caused by this dimension have driven [knight name] to madness?*

* Knights of the Toxic God origin
* 40% chance, if the unique option was taken

**Slay the invaders!*** Unity gained:  **250–1 000 000**
* *The Portal site can still be studied, but it will provide less useful data.*

**They are welcome to stay.*** *The Portal site can still be studied, but it will provide less useful data.*
* Gain 4 pops with the  Psionic,  Robust,  Very Strong,  Deviants,  Repugnant and  Slow Breeders traits and  Tomb World preference
* If the  Humanoids DLC is installed they will use the  first DLC portrait

## High-Energy Dimension

### High-Energy Dimension

File:Evt star white.png
*The Dimensional Portal on [Root.GetName] leads to a dimension of pure energy, a small amount of which can be siphoned through the portal for our own use. The procedures used to handle discrete "packets" of energy also have potential use as a weapons system.*

**Fascinating.*** Engineering research gained:  **350–100 000**
* Gain the next level of Plasma Throwers tech as an option
* Dimensional Portal Researcher and Dimensional Portal Drone jobs will also produce  Energy

## The Null Void

### The Null Void

*The Dimensional Portal on [colony name] leads to a dimension of pure entropy. It is difficult to even get sensor readings because the very energy of our pings is rapidly dissipated. Our best theory is that this "Null Void" is a dimension where the majority of zero-point energy is negative and so any positive energy which was once present has long since been used up. Knowing this, it might be possible to construct a weapon which can use the Null Void's energy destruction offensively.*

**Fascinating.*** Unlocks the File:Null void beam.png Null Void Beam technology with 50% progress
* Dimensional Portal Researcher and Dimensional Portal Drone jobs will also produce  Dark Matter

### Probing the Void

*After years of study, some researchers on [colony name] are beginning to feel they understand the Null Void. There are... currents. Forces. Some flow which gently pushes against the portal to [empire name], bringing the traces of Dark Matter we are able to collect. In theory it should be possible to make our portal more "visible" to this force, which should result in a larger harvest.*

**Intriguing.*** Issue special project: Probe the Void

### Calling the Void

*A vast signal amplifier has sent a blast of energy through the portal on [colony name]. The effect was immediate, the pressure on the far side of the portal is noticeably stronger, and with it comes an increased flow of Dark Matter.*

**Excellent.*** Dimensional Portal Researcher and Dimensional Portal Drone jobs will produce 6 times as much  Dark Matter

## Mirror Mirror

### Mirror Mirror

*Strangely, the Dimensional Portal on [colony name] seems to connect to a planet which looks very much like [colony name]. Stranger still, there's a signal being broadcast to us through it...*

**Put it on screen!*** Trigger diplomatic event *“Portal-Alien Communication” (message 1)*

 **\*\*Access Signal\*\**** Trigger diplomatic event *“Portal-Alien Communication” (message 1)*

### Portal-Alien Communication (message 1)

 **The below description is one of several available for this event.**

*This is [leader name] of the [empire name]. Who are you, Portal-aliens?*

The room and leader portrait in this diplomatic event are the same as the player empire's.

**No, \*I\* am [leader name]! Who are you?!**
Trigger diplomatic event *“Portal-Alien Communication” (message 2)*

 **Checksum error: invalid ID! This is [leader name]! Identify!**
Trigger diplomatic event *“Portal-Alien Communication” (message 2)*

### Portal-Alien Communication (message 2)

 **The below description is one of several available for this event.**

*Fascinating. If what you say is true, I think this portal bridges the gap between alternate dimensions. We are both the [Root.Owner.Leader.GetName], but at some point an event must have caused our respective dimensions to diverge.*

**Amazing. Tell us how your [Root.Owner.Species.GetNamePlural] fare!**
Engage in a conversation comparing the development of the two empires. Eventually the option to trade will be offered again.

**We should trade through our portal.**
* *"I was about to suggest that myself, for the benefit of all [Root.Owner.Species.GetNamePlural]!"*
* Planet gains the **Inter-Dimensional Trade** modifier

 **An uncalculated variable. Report status of alternate [Root.Owner.Species.GetNamePlural]!**
Engage in a conversation comparing the development of the two empires. Eventually the option to trade will be offered again.

 **Initiate trade.**
* *"Affirmative."*
* Planet gains the **Inter-Dimensional Trade** modifier

The room and leader portrait in this diplomatic event are the same as the player empire's.

{{{options}}}

After trade is initiated, a five year event pulse gives a chance to change the level of trade, changing trade-related yields from Dimensional Portal Researchers accordingly.

### Inter-dimensional Trade Increases

*The Mirror-Dimension [empire name] reports that their economy is booming. Contributing factors mentioned were our Portal Trade, as well as recent victories over the Warp beasts.*

* Chance depends on the **Inter-dimensional Trade** modifier

**Excellent.*** **Inter-Dimensional Trade** modifier increased one step
* If the planet already has the **Booming Inter-Dimensional Trade** modifier, gain 6 times monthly income of  consumer goods (minimum 100) and 3 times monthly income of  exotic gases,  rare crystals and  volatile motes (minimum 50)

### Inter-Dimensional Trade Decreases

*The Mirror-Dimension [empire name] reports that their economy is in decline due to a series of defeats at the appendages of the Warp beasts.*

* Chance depends of the **Inter-dimensional Trade** modifier

**Hopefully they will recover!*** **Inter-Dimensional Trade** modifier decreases
* If this event happens 5 times while the colony has the **Reduced Inter-Dimensional Trade** modifier:
	+ Replace the modifier with **Inter-Dimensional Crisis**, giving the following effects in addition to the trade effects detailed above:
		- **+25%** Pop growth speed
	+ Trigger event *“EMERGENCY PORTAL BROADCAST”* in about 5 years

 **[empire name] will prevail!*** **Inter-Dimensional Trade** modifier decreases
* If this event happens 5 times while the colony has the **Reduced Inter-Dimensional Trade** modifier:
	+ Replace the modifier with **Inter-Dimensional Crisis**, giving the following effects in addition to the trade effects detailed above:
		- **+25%** Pop growth speed
	+ Trigger event *“EMERGENCY PORTAL BROADCAST”* in about 5 years

### EMERGENCY PORTAL BROADCAST

 **The below description is one of several available for this event.**

*[capital planet] has been consumed. The [empire name] has fallen. As far as we know, [colony name] is the last remaining colony. The Warp beasts are everywhere! They are here!

\*\***The signal abruptly ends**\*\**

* Chance depends of the **Inter-dimensional Trade** modifier

**They are gone...**
Remove the **Inter-Dimensional Crisis** modifier

 **Mirror Universe [species name] offline.**
Remove the **Inter-Dimensional Crisis** modifier

## A Dimension of Static

### A Dimension of Static

*The Dimensional Portal on [colony name] shut itself. When we stabilized the portal, we saw that it led to a dimension consisting solely of a white, formless void interrupted only by random streaks of black noise. The strange phenomenon instantly started to seep into our universe and consumed our dimensional stabilizers, collapsing the gateway.

The portal, static, and dimensional stabilizers have all winked out of existence simultaneously. Nothing was left behind; not even trace particles. If the portal hadn't been unstable, who knows what kind of disaster might have occurred here.*

The Doorway

**Disconcerting.*** Physics research gained:  **350–100 000**
* *The Portal site can still be studied, but it will provide less useful data.*
* Trigger event *“Disruptions”* in about 30 months

### Disruptions

*Recently our [researchers] working in our primary physics lab on [**homeworld name**] have noticed strange fluctuations in their work. Our hyperdrive-related tests suffered most from these interferences, yet these interruptions only went on for about a week before stopping entirely. At the same time [From.GetName] noticed fluctuations from the now closed dimensional portal, thankfully the impossible static did not return. Hopefully, nothing will come of this.*

A Dimension of Static

**Back to work.**
Trigger event *“Negative Mass”* in about 200 days

**We should investigate this.**
Trigger event *“Negative Mass”* in about 150 days

### Negative Mass

*Eager and anxious discourse started in the scientific circles of [homeworld name] today as [scientist] published [his/her] recent findings of spontaneously appearing negative mass particles close to [capital star].

"These findings could advance our understanding of artificial wormholes and a host of other subjects," proclaims [scientist]!

Our Admiralty holds a different view on the subject and suggests we bring our fleets home until the source of this new and untested matter can be determined.*

Disruptions

 Immediate effects:* Pick a random scientist

**Fascinating.*** Empire gains the **Harvesting Negative Mass** modifier, with the following effects:
	+ **+5% monthly** Physics
* Trigger event *“The Night the Sky Split”* in about a year

### The Night the Sky Split

 **The below description is one of several available for this event.**

*The greatest minds of the [empire name] gathered today to listen to [scientist]'s latest ideas for using the negative mass particles, only to be interrupted. Emergency sirens screeched in every observatory and space station across the system as [**homeworld name**] got a new fixture in the night sky. A rip in space the size of our star stretches over horizons while a small fleet of fighters pours through the tear.*

Negative Mass

 Immediate effects:

**Battlestations!**
A hostile fleet with six Outdated Corvettes belonging to the Portal Invaders appears near the portal. The ships have tier 1 equipment and no FTL drive.

### An Old Code

 **The below description is one of several available for this event.**

*As the last corvette falls, an ensign manning the sensors of our starbase reports something curious. These ships are very similar to outdated vessels that the [empire name] stopped using years ago. The ships are lacking FTL drives and are equipped with obsolete weaponry. While the report is coming in, a communication request originating from the strange tear reverberates throughout the system. It's using our highest clearance codes... from 10 years ago.*

The Night the Sky Split

 Immediate effects:

**On screen.**
After a dialogue (*“A Trans-Dimensional Call”*), trigger diplomatic event *“The Summit”* after about a year

 **\*\*Access Signal\*\***
After a dialogue (*“A Trans-Dimensional Call”*), trigger diplomatic event *“The Summit”* after about a year

### The Summit

 **The below description is one of several available for this event.**

*A summit of the top minds from every field gathered on [**colony name**] to discuss the fate of our dimensional twins. Harsh and difficult debates were had throughout [homeworld name]. Some suggested a hands-off approach. Studying the end of a universe could be very insightful. There was talk about granting [scientist]-Beta's request to evacuate as much of the planet as possible while some mentioned how easy it would be to take whatever precious resources and energy stores the planet had left.

Just as the summit was winding down, [scientist] took center stage and declared that [he/she] believed that using the new technologies brought from the beta universe, there was a chance to bring the entirety of [homeworld]-Beta into our reality.*

event *“An Old Code”*, after a dialogue

**Study the event.*** *We cannot spare the resources for such an undertaking, but we won't let an opportunity like this go to waste.*
* Physics research gained:  **1000–1 000 000**
* Begin *“Negative Mass”* situation at the homeworld with the initial approach *“Observe the decay of the Beta-Universe”*

**Loot them.*** *These fools have left themselves defenseless!*
* Minerals gained:  **350–10 000**
* Energy gained:  **350–10 000**
* Alloys gained:  **350–10 000**
* Begin *“Negative Mass”* situation at the homeworld with the initial approach *“Plunder [homeworld]-Beta”*

**Save as many as possible.*** Influence gained:  **80–175**
* Begin *“Negative Mass”* situation at the homeworld with the initial approach *“Bring [Target.GetName]-Beta to our universe”*
* The homeworld gains 6 pops of the primary species except named "[species name]-Beta" and with the additional trait  Not of This World

**Try to bring [homeworld]-Beta to us.*** *Start a difficult project to save [homeworld]-Beta.*
* Begin *“Plight of the Beta-Universe”* situation at the homeworld with the initial approach *“Bring [Target.GetName]-Beta to our universe”*