While roaming around the first region ofWild Hearts, players will likely hear an odd clunking sound coming from the dark corners and hidden areas. Upon investigating, hunters will discover one ofWild Hearts’most useful tools: Tsukumo. These small, round robots serve the player as a battlefield assistant that provides several benefits over the course of a hunt.
Tsukumo are found inevery region ofWild Hearts,though only one will visibly accompany the player during a hunt. That’s not to say the player should stop looking once they have found one. There are 50 Tsukumo in each of the five regions, with each individual robot providing a single unit of the material needed to upgrade the player’s companion Tsukumo.

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How do Tsukumo Work in Wild Hearts?
Tsukumo acts as a customizable hunting companion that provides several benefits while fightingWild Hearts’various kemono. The benefits they provide can be broken down into the following four categories:
Camp Companions
Aside from joining the player in their hunts, Tsukumo will also populate certain campsites in the world. These will usually be the bigger hub campsites, as opposed to simply putting down a campfire in the wilderness.
Where to Find Tsukumo in Wild Hearts
The game lists 50 individual locations where Tsukumo can be found in the Haragasumi Way region. Azuma as a whole has five areas that each contain 50 Tsukumo, brining the total number in the game to 250.
Tsukumo are often found tucked away in remote corners of Azuma. They can be found at the top of a climbable wall, and they can be found in the ruins of the structures that dot the landscape. Taking the time to thoroughly explore each subsection of a region will usually reward the player with several Tsumuko.

Finally, players struggling to locate Tsukumo can also listen for their unique sound. Though the sound itself is a strange mix of robotic and organic, it is very much one-of-a-kind and will not be mistaken for anything else when heard. It can be described as being something of a robotic croaking that emanates from Azuma’s hidden recesses.
How to Upgrade Tsukumo in Wild Hearts
Using the Campfire
The player’s Tsukumo can be upgraded at the basic campfire. Setting up the fire is a basic Dragon Karakuri skill learnedvery early inWild Hearts.Aside from setting up a campfire in the wild, the player will also have one in their Minato residence. To view the Tsukumo upgrade menu, simply approach a fire, hold down L2 when the ‘warm yourself’ prompt appears, and choose the “Enhance Tsukumo” option from the menu.
The upgrade menu features the four previously mentioned attributes: Attack, Defense, Assist, and Threader. The player can upgrade each one of these forms, leveling them up and improving their associated stats and skills. Upgrades cost very little at first, but each subsequent level will require more of the required material, which in this case is a unique resource known as “old cogs.”

Where to Find Old Cogs
Finding old cogs is a relatively straightforward process, though this does not mean collecting them all with be easy. These rare items are acquired each time the hunter ‘befriends’ a new Tsukumo. This means the number of old cogs remaining in a region is directly tied to how many Tsukumo has been discovered.
Adding Threads
Upgrading Tsukumo, especially in the early game, is one of the primary ways to increase the hunters' thread count. This is the basic resource that determineshow many ofWild Hearts’karakurithe player can construct without needing to refill. Check the bottom of the upgrade menu to see the increased thread count.
Wild Heartsis available now on PS5, Xbox Series X/S, and PC.

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