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The Ultimate 1.3 Expert Mode Battle: Killing 14 Bosses (the maximum) Simultaneously AFK


Brain of Cthulhu
I did a similar challenge in 1.2.4, but in 1.3 the challenge is significantly harder because the Moon Lord does damage that has its own cooldown so damage prevention tricks (such as using a slime mob, bouncing a slime saddle on top of dummies etc.) won't work. Instead, I have to resort to an Immortality Machine: a series of parallel hoik tracks with heart statues along the way to replenish health at a rate faster than the damage inflicted by the bosses. The Stardust Dragon is the damage dealer of choice, although I have to use Dart Trap batteries for the Wall of Flesh.

I showcased the Immortality Machine here:

The challenge:

1) Summon 14 bosses (the maximum) to the world
2) Go AFK before killing any of the bosses
3) Automatically collect all the treasure bags

Note that there are in fact 15 Terraria bosses, but the Moon Lord and the Lunatic Cultist are mutually exclusive. The Moon Lord can only be summoned if the Cultists are never on-screen, and the Cultists disappear when the Moon Lord is summoned.


Bosses Destroyed Simultaneously AFK:

Eye of Cthulhu
Brain of Cthulhu
Eater of Worlds
Queen Bee
King Slime
Wall of Flesh

The Destroyer
The Twins
Skeletron Prime
Duke Fishron
Moon Lord




Map Download:

https://drive.google.com/file/d/0B4b_4cIU1vVBUUVYcUFhQVFiaFU/view (v12.9)

Enter A2 in the teleporter hub to access the all-boss arena. Follow the protocol in the video if you want to try the challenge yourself. Be warned though: make sure to summon the Brain of Cthulhu last, and it might take a few tries to summon this boss.


A big thanks to five--three, stefnotch, and FSG Gaming for their work on the T-MEC community mod - the free cam mode has enabled me to make videos showcasing a lot of the action and stabilize the camera during rapid player hoiking. The bright wiring to allow for better quality schematics is quite significant as well!

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