Heart of the Immovable King is a high-tier Pal passive in Palworld that makes a Pal’s SAN drop 20% slower, making it best for late-game base workers and long-shift work setups.
Use Heart of the Immovable King on Pals you expect to keep assigned at base through long production cycles, especially once you start pushing work through the Monitoring Station. The main decision is not whether the passive is strong; it is whether a specific Pal is worth the passive slot or the implant.
- Heart of the Immovable King quick facts
- What Heart of the Immovable King does to SAN
- Ways to get Heart of the Immovable King
- Applying the Heart of the Immovable King implant
- Best Pals and builds for Heart of the Immovable King
- Mistakes to avoid with Heart of the Immovable King
- Frequently Asked Questions
Heart of the Immovable King quick facts
| Detail | Value |
|---|---|
| Passive type | Pal passive skill |
| Rank | Rank 4 |
| Effect | SAN drops 20% slower |
| Implant | Disposable Implant: Heart of the Immovable King |
| Surgery Table use | Lets you select the matching passive at a Pal Surgery Table |
| Best use | Late-game base workers, long shifts, and high-pressure production setups |
Key The passive is a worker-focused comfort tool, not a combat damage passive. Its value comes from keeping a useful base Pal stable for longer before SAN problems start cutting into output.
What Heart of the Immovable King does to SAN
Heart of the Immovable King slows SAN loss; it does not stop SAN loss. A Pal with the passive can still become stressed, upset, or depleted if the base setup is rough enough or if you keep forcing hard work without recovery.
That makes it especially useful for Pals assigned to continuous jobs, because SAN pressure builds while they work. It sits above weaker SAN-loss passives such as Workaholic and Positive Thinker, so it is the cleaner choice when you are optimizing a late-game worker instead of patching an early base.
It also pairs well with aggressive work-speed setups. Passives that make a Pal work faster can put more pressure on SAN over time, so reducing the drain rate helps the Pal stay productive through longer stretches.
Ways to get Heart of the Immovable King
| Method | How it works | Notes |
|---|---|---|
| Passive roll | The passive can appear as a rolled passive on a Pal. | No Pal has it as a guaranteed innate passive. |
| Breeding inheritance | Breed from a parent that already has Heart of the Immovable King. | Useful after you get the passive onto one Pal. |
| Mutated Eggs | A Pal hatched from a Mutated Egg can have a rainbow passive. | Heart of the Immovable King is part of that high-tier passive pool. |
| Disposable Implant | Apply Disposable Implant: Heart of the Immovable King at the Pal Surgery Table. | The implant is consumed when used. |
You can get Heart of the Immovable King either as a passive on a Pal, then move it through breeding, or by applying its Disposable Implant at the Pal Surgery Table. For the implant route, the Ancient Relic Recycler is the main repeat-farm method tied to Ancient Relics, but exact output odds and loot-source details can vary by relic grade and dataset, so treat it as a farm route rather than a single guaranteed pickup.
Once a Pal has the passive, breeding is the long-term optimization route. That is how you push it onto the worker you actually want, instead of settling for whichever Pal first rolled it.
Use the first Heart of the Immovable King Pal as breeding stock if it is not already one of your main workers; passing the passive forward is usually more valuable than locking it onto a poor fit.
Applying the Heart of the Immovable King implant
Get the implant
Obtain Disposable Implant: Heart of the Immovable King through an implant source such as Ancient Relic Recycler rewards.
Use a Pal Surgery Table
Build or interact with a Pal Surgery Table in your base.
Select the Pal
Choose the Pal that should receive Heart of the Immovable King.
Choose the passive
Pick Heart of the Immovable King from the passive options unlocked by your stored implant.
Apply the implant
Confirm the change; the Disposable Implant is consumed when the passive is added.
Best Pals and builds for Heart of the Immovable King
Heart of the Immovable King belongs on base Pals that are expected to work constantly. The best targets are usually late-game workers assigned to production, mining, crafting, farming, or other base jobs where downtime hurts your whole setup.
It becomes stronger when you run tougher Monitoring Station settings, because those setups ask more from your workers. The passive gives you more room before SAN problems begin, especially on Pals carrying work-speed passives that increase output pressure.
It is still only one part of a stable base. Beds, food, rest access, and SAN-support structures still matter, and the passive works best when those systems are already doing their job.
Mistakes to avoid with Heart of the Immovable King
Do not treat Heart of the Immovable King as infinite SAN. It slows the drain by 20%, so bad base comfort, poor food, and nonstop overwork can still wear a Pal down.
It also is not automatically worth using on every Pal. Save it for workers that actually stay busy long enough to benefit, and remember that no Pal has Heart of the Immovable King as a guaranteed innate passive.
Related Palworld guides
Frequently Asked Questions
Can Heart of the Immovable King be passed down through breeding?
Yes. After a Pal has Heart of the Immovable King, it can be used as a breeding parent to try to pass the passive to offspring.
Is Heart of the Immovable King better than Workaholic or Positive Thinker?
Yes for SAN-loss reduction. Heart of the Immovable King gives the stronger SAN drain effect, while Workaholic and Positive Thinker are lower-strength options.
Does Heart of the Immovable King stack with base SAN-support structures?
Yes. The passive affects the Pal, while base SAN-support structures help the work environment, so using both gives better long-shift stability than relying on either one alone.
Video help
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