The "Tripod Central" mission in Arknights: Endfield tasks you with hunting down all of Copper's Lost Robots across the entirety of Talos-II. A big ask, but the mission is thankfully split into many parts, so you get rewards for locating small batches of robots at a time.

The first area you'll likely find Lost Robots in is The Hub in Valley IV, which conveniently contains eight robots — the exact number you need to find in order to complete the first part of "Tripod Central" in Arknights: Endfield. To speed your search along, we have all The Hub Lost Robot locations and puzzle solutions listed below.

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The Hub Lost Robot Location 1

The first Lost Robot in The Hub is located right beside Copper in the valley between Bridge Approach and Shorecove Camp. You need to fight the nearby Landbreakers and then speak with Copper to access the robot and start the "Tripod Central" mission.

Solution

Here's the puzzle solution for the first Lost Robot in The Hub.

Arknights Endfield The Hub Lost Robot Location 1 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 2

This Lost Robot is located on the docks to the west of where you find Copper, between Bridge Approach and Shorecove Camp.

Solution

Here's the puzzle solution for the second Lost Robot in The Hub.

Arknights Endfield The Hub Lost Robot Location 3 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 3

The third Lost Robot in The Hub is located just north of Bridge Approach. The easiest way to find it is to fast travel to the TP Point in the Core AIC Area, head west up the mining area, then jump down into the enemy camp. The robot is down some stairs at the back of this camp, by the cliff edge. If you have enough Stamina in Arknights: Endfield, you might be able to run past the enemies without having to engage them.

Solutions

Here's the first puzzle solution for the third Lost Robot in The Hub.​​​​​​​

Arknights Endfield The Hub Lost Robot Location 5 solution 1 Image via The Best War Games; Source: Gryphline

Here's the second solution.

Arknights Endfield The Hub Lost Robot Location 5 solution 2 Image via The Best War Games; Source: Gryphline

Finally, here's the third solution.

Arknights Endfield The Hub Lost Robot Location 5 solution 3 Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 4

You'll find this Lost Robot south of Bridge Approach.

Solution

Here's the puzzle solution for the fourth Lost Robot in The Hub.​​​​​​​

Arknights Endfield The Hub Lost Robot Location 4 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 5

This Lost Robot is located by the upper bridge in the Construction Site area.

Solution

Here's the puzzle solution for the fifth Lost Robot in The Hub.

Arknights Endfield The Hub Lost Robot Location 2 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 6

The sixth Lost Robot in The Hub area is located by some construction work between Woodland Fringes and Southern Meadows.

Solution

Here's the puzzle solution for the sixth Lost Robot in The Hub.​​​​​​​

Arknights Endfield The Hub Lost Robot Location 6 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 7

This Lost Robot can be found south of the TP fast travel point in Southern Meadows.

Solution

Here's the puzzle solution for the seventh Lost Robot in The Hub.​​​​​​​

Arknights Endfield The Hub Lost Robot Location 7 solution Image via The Best War Games; Source: Gryphline

The Hub Lost Robot Location 8

The final Lost Robot in The Hub area of Arknights: Endfield is found in the very northeastern corner of Southern Meadows, near the edge of the Worker Dorms area.

Solution

Here's the first puzzle solution for the eighth Lost Robot in The Hub.​​​​​​​

Arknights Endfield The Hub Lost Robot Location 8 solution 1 Image via The Best War Games; Source: Gryphline

And here's the second solution.

Arknights Endfield The Hub Lost Robot Location 8 solution 2 Image via The Best War Games; Source: Gryphline

Once you've found eight Lost Robots and solved their puzzles (it doesn't have to be eight exclusively found in The Hub), go find Copper in the Worker Dorms area to get your rewards (which includes some Oroberyl that you can use to pull on Banners in Arknights: Endfield) and continue with the 'Tripod Central' mission. You'll find more Lost Robots in Valley Pass, Aburrey Quarry, Originium Science Park, Origin Lodespring, and Power Plateau.

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Action
RPG
Action RPG
Strategy
Base Building
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Systems
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Developer(s)
Hypergryph
Publisher(s)
Hypergryph
Engine
Unity
Multiplayer
Online Multiplayer
Number of Players
Single-player
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DIGITAL
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Genre(s)
Action, RPG, Action RPG, Strategy, Base Building