Mysterious Portal

   Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.

Mysterious Portal

Map Icon

 Classic

 Expert

 Master

Statistics

Type	Spawner
Environment	Old One's Army
AI Type	Mysterious Portal AI
Damage	0
Max Life	5
Defense	20
KB Resist	100%
Immune to	All debuffs

Sounds

Hurt
Killed
Open
Idle
Spawn enemy

• Internal NPC ID: 549

“ I don't see why we can't just blow up those portals. — The Demolitionist

The Mysterious Portal instantly opens at the start of the Old One's Army event. The Mysterious Portal cannot be destroyed normally, and two of these will spawn 235 tiles on either side of the Eternia Crystal Stand. They are responsible for all the enemies that spawn in the event, and they despawn upon the event's completion or failure.

Tips

• A good way to keep the enemies at bay near the Mysterious Portal is by placing an Explosive Trap near the portal's entrance. This way the enemies will instantly take damage when they come out.
• Beehive/Hive spawned bees can be used to destroy the portals. Destroying both portals prevents enemies from spawning, making the event impossible to complete.
  • One could use this to destroy a single portal, thereby funneling enemies towards one side of the crystal only.

The first released image of a mysterious portal

History

 Desktop version

• Desktop 1.3.4.2: Now emits light.

• Desktop 1.3.4: Introduced.

 Console version

• Console 1.17: Introduced.

 Switch version

• Switch 1.0.1096.2: Introduced.

 Mobile version

• Mobile 1.4.0.5.0: Introduced.