Common Monster DropSquirming Core
Squirming Core is a 4★ material in Honkai: Star Rail. See how to get it and which characters/light cones need it below.
Squirming Core is a material ★4 in Honkai: Star Rail. 13 characters need this item to level up. 32 Light Cones need this item to level up. Obtainable from 5 different sources in-game.
Last updated: 30/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
Description
The heart of a monster wandering the Fragmentum. Advanced material used for enhancement.
Lore
It is a lesion that breeds evil, the impulse to sin. It is the source of the Fragmentum distortion. The heart is pulsating slowly, with a residual force powerful enough to cause a new calamity. It's best to destroy it to prevent further troubles. "It's like a cancer..."
Farm it smart
An ascension material dropped by common enemies; craft it up to higher tiers at the Omni-Synthesizer. You need a LOT across characters — farm drop points with Trailblaze Power regularly and NEVER let your Power cap at 300 (pure waste). The quiet resource sink.
Material Planner →
Dropped By
How to obtain
- Certain Fragmentum Monsters at Equilibrium Level 4 or higher
- Omni-Synthesizer — Material Synthesis
- Dropped by enemies in Divergent Universe
- Simulated Universe enemies
- Omni-Synthesizer — Material Exchange
Used to upgrade
Used for Light Cones
Stats
| Rarity | ★★★★ |
| Type | Common Monster Drop |
| Stack limit | 99,999 |
Official names in every language
| Tiếng Việt | Lõi Rục Rịch |
| English | Squirming Core |
| 日本語 | 脈動する原核 |
| 한국어 | 꿈틀대는 코어 |
| 繁體中文 | 蠢動原核 |
| 简体中文 | 蠢动原核 |
Where to use it / Related tools
Squirming Core is an upgrade material — check the Material Planner to see how much you need for the character you're building.
Same-type items
FAQ
What is Squirming Core?
The heart of a monster wandering the Fragmentum. Advanced material used for enhancement.
Where do you get Squirming Core?
Sources for Squirming Core: Certain Fragmentum Monsters at Equilibrium Level 4 or higher · Omni-Synthesizer — Material Synthesis · Dropped by enemies in Divergent Universe · Simulated Universe enemies · Omni-Synthesizer — Material Exchange. See the “How to obtain” section above for details on each source.
What type of item is Squirming Core?
Squirming Core is a 4★ material in Honkai: Star Rail, in the “Common Monster Drop” category.
What is Squirming Core used for?
Squirming Core is used by 13 characters, 32 Light Cones.