Seed of Infection

A Portal to another world has opened!

The Seed of Infection is a Pre-Hardmode boss that is intended to be fought after the Eater of Worlds or the Brain of Cthulhu.

While the Seed of Infection is alive, the music Virogenesis will play.

Spawn

The Seed of Infection is summoned using the Anomaly Detector.

The Seed of Infection moves near the player and does the following attacks:

Dash : The boss moves away from the player for a second before charging quickly at them twice.
Shard Shot : The boss stays to the side of the player and fires a spread of 3 projectiles. Once below 75% health, 5 projectiles will be fired.
Irradiated Rain : The boss tries to go above the player and shoots a burst of gravity-affected projectiles upwards.
Hive Growths : The boss stops and spawns 2 Hive Growth minions which move towards the player. 3 are spawned upon reaching 50% health.

Upon reaching 75% health, it gains the following attack:

Xenomite Beam : The boss tries to go above the player and shoots down a green beam from it's eye.

Upon reaching 50% health, it gains the following attacks:

Toxic Sludge : The boss moves to the side and shoots 2-3 bouncy gloop balls.
Xenomite Shot : The boss moves away from the player before doing continuous small dashes while firing gravity-affected projectiles in random velocities.

Upon reaching 25% health, it gains the following attack:

Scatter Splatter : The boss stops moving and starts to spin, shooting out bouncy toxic sludge in random velocities.

After the Seed of Infection is defeated, a green portal will appear if there are no tiles in the way or no bosses active, if the conditions are not met, it'll appear the moment they are. A cutscene will play introducing Adam the Friendly T-Bot, who will move in immediately even without a house available. If the player leaves without the portal appearing, Adam will move in naturally like any other town NPC.

The Bestiary entry for the Seed of Infection: "A blistering pocket of the Xenomite infection."