L-星团

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唯一星系

L-星团

L-Cluster outside of a Huge-sized elliptical galaxy

The L-Cluster is a cluster of stars located north-east of the galaxy and entirely inaccessible through the regular hyperlane network, experimental subspace navigation, or jump drives. The L-Cluster contains on some celestial bodies a unique Strategic Resource:  纳米机器人（Nanites）. If a ringworld is built inside the L-Cluster the uninhabitable sections may gain  纳米机器人（Nanites） deposits.

What else will be found in the L-Cluster is randomized at the start of the game. As such reloading a previous save before accessing will not alter the result.

L星门

Some Black Hole systems are home to L-Gates. These heavily modified gateways cannot be activated with the  星门激活（Gateway Activation） technology. Upon first encountering one, the L-Cluster entry will be added to the Situation Log, requiring the collection of 7 L-Gate Insights. Insights can be obtained from investigating anomalies, defeating certain enemies, researching the rare L-Gate Insight repeatable  宇航技术（Voidcraft） technology or asking the Curator Order for an insight every decade ( -5000  能量币（Energy Credits）). Once an empire acquires 5 L-Gate Insights the other empires will be notified.

Players can spend 50  稀有文物（Minor Artifacts） to discover an L-Gate Insight with a cooldown of 10 years.

Once 7 L-Gate Insights have been collected, the  L-星门启动（L-Gate Activation） technology will become available for research. The empire will have to own a system with an L-Gate before it can access the L-Cluster. Finally, a special project will be added to activate the L-Gate, taking 180 days for a science ship to open the gate.

Once the first L-Gate is activated one of four things will be found, with the following weights:

结果	概率	是否开启全部L星门
灰蛊风暴（Gray Tempest）	35.7 %
德萨努协和国（Dessanu Consonance）	21.4 %
小灰（Gray）（一片静寂）	21.4 %
L-星龙（L-Drakes）	21.4 %

Up to 10 L-Gates can exist in a galaxy and new ones cannot be constructed. Only one L-Gate is located in the L-Cluster, in the Terminal Egress system, and as a result any L-Gate in the galaxy will connect to the same gate in Terminal Egress but the Terminal Egress gate can be used to travel to any L-Gate inside the galaxy. Unlike regular gateways, L-Gates in enemy systems can be used during war.

Completed Sentry Arrays will not grant visibility of the L-Cluster before an L-Gate is activated. After L-Gate activation, it will grant visibility of the L-Cluster.

灰蛊风暴

Gray Tempest emerging from a reactivated L-Gate

A common outcome of the L-Gate activation is an invasion from the L-Cluster. All L-Gates in the galaxy except the first one activated will open at the same time and bring an invasion force. In a tiny galaxy with only one L-Gate the empire that activated it will endure the invasion instead.

If a Gray Tempest fleet bombards a colony until it reaches 100  破坏度（Devastation） it will turn it into a Nanite World. If the colony is a habitat or a ringworld segment, it will be destroyed.

Nanite fleets are composed of one titan and 5 cruisers all equipped with a few energy weapons and numerous strike craft. Their energy weapons deal -25% damage to shields and double damage to armor, their strike craft ignore shields and 66% of armor and their titan weapons ignore all shields and armor. Therefore point-defenses are necessary, preferably Flak Artillery, and  水晶复合镀层（Crystal-Infused Plating） or  水晶锻造镀层（Crystal-Forged Plating） components and to a lesser extent shields will help. Nanite ships have equal amounts of tier V armor and shields, and their special strike craft can’t do point defense, so the best offensive weapon would be Torpedoes. Due to the huge number of strike craft that nanite titans carry own strike craft are more useful at fleet defense than offence.

The Gray Tempest home system contains a factory station twice as strong as the usual fleet which will create a new fleet every 10 years. If the factory is destroyed, all Gray Tempest ships will dissolve and all Nanite Worlds will get the Terraforming Candidate planet modifier.

德萨努协和国

Another possible outcome of the L-Gate activation is finding an empire called the Dessanu Consonance inhabiting the entire L-Cluster. Upon discovery the Dessanu will provide the empire that opened the gate +1  活体金属（Living Metal）,  异星天然气（Exotic Gases）,  稀有水晶（Rare Crystals） and  易爆微粒（Volatile Motes） as well as the Living Metal technology if it hasn't been already researched. Their only request is that no ship will enter the factory trinary system at the heart of the L-Cluster and that they are not asked about the Nanites. The Dessanu will never leave the L-Cluster even if they become hostile, nor will they build new fleets.

Each time a ship or fleet enters the factory system the Dessanu will demand that it leaves within 60 days. Refusing to do so or inquiring too much about nanites will make them hostile, as will attacking them.

Each Dessanu system contains at least one Gaia World. However, if a planet is successfully invaded and occupied it will turn into a Nanite World with the Terraforming Candidate planet modifier. All armies will safely retreat back in orbit. If the factory is destroyed the same will happen to all Dessanu worlds.

小灰 

If the L-Cluster is abandoned a random Nanite World will have a Level 3 Surface Signature anomaly. Investigating it will reveal a nanite entity taking the form of a member of the species discovering it. Asking it to join you will add Gray to the Contacts menu. Gray can take one of three forms at any time (except if it is in battle or merging state):

• Governor Level 10 leader with the Nanite Entity trait
• Nanite Titan ship (around 40k fleet power)
• Nanite Warform army (around 1k army strength)

Should Gray be destroyed it will merge back and reappear in 10 years.

This outcome leaves only one L-Gate activated, all the others coming online afterwards one at a time every one or two years. This gives the empire that activated the first L-Gate a significant head start, especially if opened in the early game.

L-星龙

The only outcome of the L-Gate activation seemingly unrelated to nanites is the spawning of L-Drakes. Each L-Gate in the galaxy will activate and bring an L-Drake which will travel to a random system three hyperlanes away and nest there. It will not be hostile even if its nesting system is claimed. If an L-Drake is attacked all L-Drakes will become hostile towards the attacking empire but each L-Drake killed adds a moderate reward of  影响力（Influence） and  矿物（Minerals）. If the empire that opened the L-Gate takes this stance it will also gain moderate  Engineering and  社会学研究（Society Research） research for each killed L-Drake and discover that the L-Drakes are nanite constructs. L-Drakes fight identically to the Young Drake from the  星神兽故事包（Leviathans Story Pack） DLC.

If the empire that opened the L-Gate enters a nesting system with a science ship it will have the option to start a special project to tame the L-Drake residing there, gaining control of it. The option is not available if the empire is  极端排外主义（Fanatic Xenophobe） or genocidal.

This outcomes leaves all L-Gates activated and leading to an abandoned L-Cluster, allowing everyone access.

结果

L星门的结果在星系生成时就已经作为全局flag设定好了，所以存档SL并不会改变结果。如果在非铁人模式控制台输入以下指令则可以获知开启L星门的结果。

effect if = { limit = { has_global_flag = gray_goo_crisis_set } custom_tooltip = "Gray Tempest"}#灰蛊风暴
else_if = { limit = { has_global_flag = dragon_season } custom_tooltip = "L-Drake" }#L-星龙
else_if = { limit = { has_global_flag = gray_goo_empire_set } custom_tooltip = "Dessanu Consonance" }#德萨努协和国
else = { custom_tooltip = "Gray" }#小灰

从故事叙事/角色扮演的角度来说，小灰事件结果中显示给玩家的文字描述了德萨努协和国的事件，而德萨努协和国又描述了灰色风暴的事件。 但是这仅仅是从故事叙述的角度来看待事件，正如上文所述，结果在星系产生时已经确定，在游戏更早的阶段启动L-星门并不会触发“更早的事件”。