Temporal incursion

A temporal incursion is a short-duration visit to the past wherein two Vaal architects are vying for control of a room within the Temple of Atzoatl. The objective is to murder one of the architects so that the other can prevail, thereby altering the Temple in the present time.

Access

After completing No Time like the Present, Alva Valai will have a chance to spawn in most zones, allowing the player to enter three Incursions - There will be three separate entrance points throughout any map she spawns in. She does not spawn in side areas or if the zone is more than 10 levels lower than the level of the player. Alva can also appear in maps. You can increase the chance of an Alva encounter appearing with related Atlas passive tree nodes.

Each time players encounter Alva Valai in the wilderness, she can open a time portal, allowing a visit to an incursion room in the ancient Vaal Temple of Atzoatl during its construction.

During the Incursion League, she would appear in almost every zone, but would only allow access to one Incursion per zone as opposed to the current three.

Incursion rooms

Main page: incursion room

Players have a short time, initially 10 seconds, to spend in each temporal incursion. During this time, they can (in descending order of priority):

• Kill one of two Vaal Architects who guide the temple's construction. This will either change the room in the present-day Temple of Atzoatl to a different type with the surviving architect's theme, or upgrade it to the second or third tier of the same theme and improve rewards. Damaging the Architect extends the incursion duration.
• Pick up a Stone of PassageStone of PassageThis item can be placed into an Altar of Passage to create a connection between two adjacent rooms in the Temple of Atzoatl. This item will drop on the ground when leaving an Incursion. that drops as loot and use it to open one of the locked (red) doors. This will open the corresponding passage in the present-day Temple of Atzoatl, allowing the player to access more of the dungeon. These are guarded by rare monsters.
• Kill monsters to extend the incursion duration and gain loot. The loot will drop all at once after the end of the incursion.

Note that you cannot get the same incursion room more than once in a single area. Killed architects cannot be re-encountered for the entirety of that temple cycle.

Temple of Atzoatl

After 12 incursions, the completed Temple of Atzoatl dungeon can be entered and looted. Which rooms are accessible and what they contain depends on the player's actions during the incursions.

You can also select "Take Temple Chronicle" to itemize the completed Temple of Atzoatl into a Chronicle of AtzoatlChronicle of Atzoatl"Grand plans were laid for a place called Atzoatl, though fierce bickering between its Architects is said to have stifled its development." - Icius Perandus, Antiquities Collection, Research ReportRight click this item to view the Temple of Atzoatl.
Can be used in a personal Map Device to open portals to the Temple of Atzoatl in the present day., which can be used to open an instance to that Temple of Atzoatl using a map device. You must be able to access a map device to use this function.

Related Atlas passive skills

Name	Stats
Incursion Item Quantity	5% increased Quantity of Items dropped in Incursions in your Maps [1] [2] [3] [4]
Incursion Mission Chance	Your Maps have +8% chance to contain Alva [1] [2] [3] [4] [5] [6] [7] [8] [9] Your Maps have +10% chance to contain Alva [3] [4]
Incursion Pack Size	Incursions in your Maps have 5% increased Pack Size [1] [2] [3] [4]
Incursion Upgrade Chance	Killing non-resident Architects in your Maps has 10% chance to add an additional Upgrade Tier to the surviving Architect's Room [1]
Archaeology Tour	Your Maps have 100% increased chance to contain Alva [1]
Artefacts of the Vaal	Your Maps with Incursions always have four Incursions [1]
Contested Development	Killing resident Architects in your Maps adds their Upgrade Tier to the surviving Architect's Room [1]
Just in Time!	Your Maps have +20% chance to contain Alva [1]
Resource Reallocation	Killing non-resident Architects in your Maps has 40% chance to add an additional Upgrade Tier to the surviving Architect's Room [1]
The Perpetual Search	[DNT] Final Map Bosses in your Maps have 12% chance to drop an additional basic Incursion Scarab [1]
Time Dilation	Time gained from Kills is Doubled for Incursions in your Maps Incursions in your Maps have 33% chance for all Monsters to be at least Magic [1]
Treasure Hunt File:AtlasAlvaNotable (AtlasTrees) passive skill icon.png	Incursions in your Maps contain Cursed Treasures [1]
Vaal Oligarchs	Incursions in your Maps contain a Vaal Flesh Merchant [1]

Related Scarabs

Item	Effect(s)
Incursion ScarabIncursion ScarabStack Size: 20Area contains AlvaUncover the secrets of the Vaal one incursion at a time.Can be used in a personal Map Device to add modifiers to a Map.	Area contains Alva
Incursion Scarab of ChampionsIncursion Scarab of ChampionsStack Size: 20Incursions in Area have a 35% chance for all Monsters to be at least Magic Incursions in Area have 15% increased Pack SizeOnly the best served in Atzoatl.Can be used in a personal Map Device to add modifiers to a Map.	Incursions in Area have a 35% chance for all Monsters to be at least Magic Incursions in Area have 15% increased Pack Size
Incursion Scarab of InvasionIncursion Scarab of InvasionStack Size: 20Area contains 12-16 additional packs of Incursion MonstersA gate, once opened, may swing in either direction.Can be used in a personal Map Device to add modifiers to a Map.	Area contains 12-16 additional packs of Incursion Monsters
Incursion Scarab of TimelinesIncursion Scarab of TimelinesStack Size: 20Final Architect slain in Area will drop an Itemised Temple Itemised Temples dropped in Area are generated based on current Temple layout, but with randomised room tiersThey say if you go far enough, you will meet yourself...Can be used in a personal Map Device to add modifiers to a Map.	Final Architect slain in Area will drop an Itemised Temple Itemised Temples dropped in Area are generated based on current Temple layout, but with randomised room tiers

Version history

Version	Changes
3.19.1	Improved the outcome odds for the Tainted Orb of FusingTainted Orb of FusingStack Size: 20Unpredictably adds or removes a link to the largest group of linked sockets on a corrupted itemRight click this item then left click a corrupted socketed item to apply it., Tainted Jeweller's OrbTainted Jeweller's OrbStack Size: 20Unpredictably adds or removes a socket on a corrupted itemRight click this item then left click a corrupted socketed item to apply it. and Tainted Mythic OrbTainted Mythic OrbStack Size: 20Unpredictably either upgrades a corrupted item to unique rarity or destroys itRight click this item then left click a corrupted item to apply it. Cannot apply to Maps..
3.14.0	Alva can now convert your completed and ready-to-run Temple of Atzoatl into an tradeable object that can be consumed in the Map Device. You will need access to the Map Device to use this convert function. The "Monsters Killed" progress bar in Temporal Incursions has been updated slightly, to make it easier to see if you have killed all of the Monsters in the Incursion.
3.13.1e	Sirus, Awakener of Worlds and The Shaper can no longer appear in The Sacred Grove, Temporal Incursions, Syndicate Laboratories and Conquerors arenas.
3.11.0	Fixed a bug where leaving a map where Alva was present for an extended period of time could prevent you from doing any remaining Incursions when you returned. Fixed a bug where dying in a map where Alva was present could under certain circumstances prevent you from doing any remaining Incursions when you returned.
3.7.0	It now requires 12 separate Incursions to enter the Temple of Atzoatl in the present (up from 11). This gives you an extra attempt to upgrade or change a room before you enter the Temple with Alva.
3.5.0	Reintroduced to the game as a core mechanic.
3.3.0	Introduced to the game as part of Incursion league.