Sentinel

This page is about the item class and its corresponding game mechanics. For the notable passive skill, see Sentinel (passive skill). For the monster mod "Sentinel", see Archnemesis modifier. For the expansion, see Sentinel (expansion).

This article needs to be updated.

Reason: Sentinels were added to the core game in version 3.25.0, but are different from how they were in Sentinel league.

Please update this article to reflect newly available information. Relevant discussion may be found on the talk page.

A broken Sentinel found in a map

Sentinels are a type of interactable mechanic first introduced in the Sentinel league. They have a chance to appear in tier 16 and 17 maps.

Mechanics

Sentinels have a chance to appear in tier 16 and 17 maps. One Sentinel with random modifiers will spawn near the starting portal. Players can interact with the Sentinel to repair it, granting the ability to deploy it in that area by clicking on the button or using the corresponding hotkey.

When a Sentinel is deployed, it will follow the player around for a duration, firing beams at nearby monsters to empower them. Monsters recover to full life when gaining Empowerment. Empowerment increases damage dealt and reduces damage taken by the monster, but also increases the experience, item rarity, and item quantity of the monster when killed. Empowering an enemy also has a chance for it to gain an additional reward.

The Sentinel will disappear once it has empowered a set number of enemies, is dismissed manually, when the Sentinel's duration expires, or if the player dies or leaves the instance.

Types of Sentinels

There are three types of Sentinels.

Stalker Sentinel (Red)

Stalker Sentinel fires beams periodically to empower enemies.

Pandemonium Sentinel (Blue)

Pandemonium Sentinel fires a beam once, chaining to multiple enemies. Unlike the other types, it will disappear after firing its beam once, even if it didn't get to empower the maximum number of enemies.

Apex Sentinel (Yellow)

Apex Sentinel fires a beam to empower enemies, but it only targets Rare and Unique monsters.

List of modifiers

Main pages: List of modifiers for stalker sentinels, List of modifiers for pandemonium sentinels, and List of modifiers for apex sentinels

List of Sentinels

This section needs to be updated.

Reason: Confirm which Sentinel base types can be found and if unique Sentinels exist.

Please update this article to reflect newly available information. Relevant discussion may be found on the talk page.

Sentinels can have different base types, which determine their duration, number of monsters it can empower, and the strength of the empowerment. (The amount of charges it has is no longer relevant.)

Main page: List of sentinels

List of Unique Sentinels

Main page: List of unique sentinels

In Sentinel league

In Sentinel league Sentinels could be found as items. Sentinels can be found in Sentinel Caches that can randomly appear in zones. They can also drop from enemies. The first Sentinel Cache you open with your character will drop a Sentinel Controller, giving you access to the Sentinel Controller and adding Sentinel equipment slots. You can equip one of each type of Sentinel.

Sentinels drop unidentified, but cannot have their mods modified. Sentinels also have a limited number of times they can be deployed. There is no way to add charges to a Sentinel.

Sentinels can be deployed in story zones, regular maps, Vaal side areas, the Eternal Labyrinth, Breachstones, the Temple of Atzoatl, Delve, and Invitations.

Sentinels cannot be deployed in unique maps.

Sentinel Controller

The Sentinel Controller interface, unlocked after using the Sentinel ControllerSentinel ControllerFor aeons, ancient constructs have lain dormant,
but now their designs are under your control., allows you to allocate passive bonuses to Sentinels by making connections between Runic Nodes by placing Filaments. Most Runic Nodes require only one Filament; larger Runic Nodes require two Filaments, and Sentinel Slots require three Filaments. The number of Filaments required also represents the number of power units used. Killing enemies empowered by Sentinels grant experience towards unlocking additional power units, starting at 4 up to a maximum of 30 power units at max experience. Filaments can be placed and removed freely without any cost. The Sentinel Controller configuration can be changed anywhere, but the changes will not apply until you enter a new instance and will not affect your Sentinels in the current instance.

Power Core

A Power Core allows you to combine two Sentinels (regardless of charges left) to create a new, fully charged Sentinel. The Sentinel will receive a combination of mods from both components, with a chance for unpredictable changes. Certain Sentinel base types can only be created with Power Cores. There are four different types of Power Cores: Power CorePower CoreStack Size: 20Destroys two Sentinels to create a fully-charged Sentinel with a combination of their properties. Sometimes, the resultant item is modified unpredictablyRight click this item then select two Sentinels to combine., Transforming Power CoreTransforming Power CoreStack Size: 20Destroys two Sentinels to create a fully-charged Sentinel with a combination of their properties. Sometimes, the resultant item is modified unpredictably, with a higher chance of a special base typeRight click this item then select two Sentinels to combine., Augmenting Power CoreAugmenting Power CoreStack Size: 20Destroys two Sentinels to create a fully-charged Sentinel with a combination of their properties. Sometimes, the resultant item is modified unpredictably, with a higher chance of new random modifiersRight click this item then select two Sentinels to combine., Amplifying Power CoreAmplifying Power CoreStack Size: 20Destroys two Sentinels to create a fully-charged Sentinel with a combination of their properties. Sometimes, the resultant item is modified unpredictably, with a higher chance of a upgrading the tier of modifiersRight click this item then select two Sentinels to combine..

Gallery

• 

  Apex, Stalker and Pandemonium sentinels

• 

  The shell of a depleted sentinel

Version history

Version	Changes
3.25.0	You may now stumble across Sentinels on the ground near the start of Tier 16 and 17 Maps. They work in a similar fashion to Sentinel League, though they aren't items. Click on them and they can be activated in that area at any time.
3.22.2	Added support for our upcoming November Events (including a Kalandra and Sentinel event, as well as Krangled Passives). Check out our announcement post for information on these events!
3.18.1f	Sentinels and Power Cores will be deleted upon logging in.
3.18.0e	All Apex Sentinels can now empower an additional monster. Apex Sentinels now add slightly more rewards to Rare and Unique monsters based on the level of the monster. Sentinels can no longer drop in areas where Sentinels cannot be used, such as Unique Maps. Sentinels can no longer empower Malachai, The Nightmare, or Catarina, Master of Undeath, in the first phase of their Boss fights as they don't drop items at the end of this phase.
3.18.0d	Character level no longer prevents you from using Sentinels in Act Areas. Updated the description of the Sentinel Runic Node that causes found Normal-rarity Sentinels to be upgraded to Magic rarity to clarify it applies to Sentinels found from Monsters you kill and Chests you open. Updated the Controller input mode keybind for equipping a Sentinel. Using this keybind when highlighting an equippable Sentinel will now also open the Sentinel Controller Panel. Using the equip keybind in Controller input mode will now swap the Sentinel highlighted in your inventory with the relevant Sentinel in your Sentinel Controller Panel if you already have one equipped. The charges on equipped Sentinels can now be viewed using the Right-stick button in Controller input mode.
3.18.0b	Sentinels can no longer Empower Piety in Act 3 Crematorium as she cannot drop items.
3.18.0	Introduced to the game.

See also

• Guide:Sentinel assembly