To use the Summoning Altar in Palworld, unlock it via Ancient Technology, build it in a safe, open area, and offer a crafted Pal Slab to spawn a destructive Raid Boss you must defeat within a 10-minute timer.
The Summoning Altar in Palworld is your gateway to fighting Raid Boss Pals, but it comes with serious risks to your base if you aren’t prepared. It acts as a single-use beacon that consumes a crafted Pal Slab to instantly spawn a high-level boss. Because these bosses are highly destructive and the altar breaks upon activation, understanding the setup and material costs is critical before you place one down.
Summoning Altar unlock requirements and building costs
| Unlock Level | Technology Points | Building Materials | Structure HP |
|---|---|---|---|
| ~32-33 | 3 Ancient Technology Points | 100 Stone, 20 Paldium Fragments | 10,000 HP |
The Summoning Altar is classified as Ancient Technology. You unlock it in your technology menu at around Level 32-33 — sources differ slightly on the exact level — for a cost of 3 Ancient Technology Points. Once unlocked, you can build it from the construction menu using basic materials. Keep in mind that this structure is strictly a one-time-use item; it is destroyed the moment you initiate a raid, so you will need to rebuild it every time you want to fight a boss.
How to summon a Raid Boss at the Summoning Altar
STEP 1/8
Find an open area

Find a nice, large open area to place the altar and begin building your defenses.
STEP 2/8
Build a Pal Expecting Station

Construct a Pal Expecting Station so you can start sending Pals out on expeditions.
STEP 3/8
Send Pals for slab fragments

Check expedition destinations and send Pals out to retrieve slab fragments.
STEP 4/8
Craft the Pal Slab

Once you have at least four matching slab fragments, go to a workbench and craft the complete Pal Slab.
STEP 5/8
Drop your strongest Pals

Go to your Palbox, sort by level, and drop all your strongest Pals — Level 40 or higher is recommended.
STEP 6/8
Offer the slab at the altar

Interact with the Summoning Altar, offer the slab, and choose to summon at the base or the raid area.
STEP 7/8
Let your Pals fight the boss

Let your deployed Pals attack the Raid Boss while you assist or stay out of danger.
STEP 8/8
Loot the boss

Do not forget to loot the boss after it is defeated to claim your rewards.
Video help
Bellanoir Raid Boss variants and slab requirements
| Raid Boss | Level | Slab Required | Slab Source |
|---|---|---|---|
| Bellanoir | 30 | Bellanoir’s Slab | Crafted from 4 fragments (Expeditions or Dungeon Chests) |
| Bellanoir Libero | 50 | Bellanoir Libero’s Slab | Crafted from 4 fragments (Expeditions or Dungeon Chests) |
| Bellanoir Libero (Ultra) | 50 | Bellanoir Libero (Ultra) Slab | Rare drop after defeating Bellanoir Libero |
Currently, the Summoning Altar is used to spawn variants of the Bellanoir Raid Boss. Each variant requires a specific Pal Slab, and the difficulty scales dramatically from the base version to the Ultra variant. You have exactly 10 minutes to defeat whichever boss you summon. If the timer runs out, you lose the fight and waste your consumed altar and slab.
Build a dedicated, empty raid base on the edge of a cliff, place the Summoning Altar at the bottom, and move your combat Pals down there to draw boss aggro away from your Palbox.
Common mistakes and base-defense strategies
The biggest mistake players make is summoning a Raid Boss inside their main production base. Raid Bosses are highly destructive and will tear through your structures, completely destroying everything you have built. If the boss destroys your Palbox, you instantly fail the raid and lose your Pal Slab without a refund.
Another common error is bringing Pal Spheres to the fight. You cannot catch Raid Bosses like Bellanoir; the fight is strictly to the death. Finally, make sure you bring enough firepower. If you drop a team of Pals at Level 40 or higher, they can often auto-defeat lower-level bosses like the Level 30 Bellanoir without you needing to personally fight.
Frequently Asked Questions
Is the Summoning Altar reusable or do I have to rebuild it?
The Summoning Altar is a one-time-use structure. It is destroyed the moment you offer a Pal Slab to spawn a Raid Boss, so you must rebuild it using 100 Stone and 20 Paldium Fragments every time you want to initiate a new raid.
Can you catch Raid Bosses like Bellanoir?
No, you cannot catch Raid Bosses. Bringing Pal Spheres to the fight is useless, as the encounter is strictly a fight to the death on a 10-minute timer. Your only rewards are the loot drops left behind after the boss is defeated.
What happens if I fail the raid or my Palbox is destroyed?
If the 10-minute timer expires or the Raid Boss destroys your Palbox, you instantly fail the raid. You will lose your consumed Pal Slab and the Summoning Altar with no refunds for your materials.
What level should my Pals be to fight a Raid Boss?
You should bring Pals that are at least Level 40 or higher. A team of Level 40 Pals can easily auto-defeat lower-level bosses like the Level 30 Bellanoir, but you will need a much stronger, well-rounded team for the Level 50 variants.