Source-reviewed guide
Jotun Invasion: Trigger, Ice Core and Reward
Jotun Invasion guide for Valheim 1.0: how to reach or trigger it, required items, useful rewards, tactics, and its Deep North progression role.
Reviewed 2026-09-23
Jotun Invasion is a Deep North event tied to one Malicious Blood after destroying the invasion core. It fits into the route mapped in the Deep North guide and the locations catalog.
Quick facts
| Type | Event |
| Biome | Deep North |
| Unlocked by | destroying Malicious Ice at the bottom of Mörkhalla |
| Useful rewards | one Malicious Blood after destroying the invasion core |
| Requires | Break Malicious Ice at the bottom of Mörkhalla |
How to trigger it
- Unlock and clear Mörkhalla.
- Destroy the Malicious Ice at the dungeon bottom.
- Find the invasion marker elsewhere in the world and travel prepared.
- Destroy the event's ice core to obtain Malicious Blood.
What you get from it
- One Malicious Blood toward the three required at the Aesir Passage.
- A repeatable stage of the Kall Fimbulbringer summon chain.
- A clear reason to keep portals and travel supplies ready after each Mörkhalla run.
Tactics
- Note the event location before leaving the dungeon sequence.
- Bring food and recovery supplies for both travel and the core fight.
- Focus the objective when safe instead of letting the event stretch indefinitely.
- Repeat the full route until you hold three blood.
Finding and clearing the event
Breaking Malicious Ice at the bottom of Mörkhalla starts a Jotun Invasion, but the battle does not necessarily appear beside the dungeon. It can select a valid point almost anywhere on the explored world. Open the map immediately, locate the event icon, and use your portal network or ship plan to reach it.
The event fields Krigen and Hexen around a central Malicious Ice core. Bring frost and poison preparation, sustained food, healing, repaired weapons, and portal materials. Control enemies when needed, but remember that destroying the core is the actual objective; the event does not resolve simply because you survived for a normal raid timer.
Breaking the core awards one Malicious Blood. Three are required at the Strange Bowl in the Aesir Passage, so repeat the Mörkhalla-and-invasion loop three times. Do not confuse the reward with Sacrificial Blood, which appears only after Kall.
Frequently asked questions
Where does a Jotun Invasion spawn?
It can appear anywhere on the world map after Malicious Ice is broken. Check the event icon immediately.
How does the event end?
Destroy the central Malicious Ice core. It awards one Malicious Blood; waiting out a normal raid timer does not complete the objective.
Documentation status
Iron Gate's 1.0 notes confirm the named content; exact quantities and route details here are included where current hands-on guides and game-data references agree.
Sources
Sources: Official Valheim 1.0 notes, Deep North overview — BisectHosting, Valheim.tools game-data guide, Beebom guide.