J-50N
Terrarian
The title got you here, didn't it? I figured. The idea here is that the Mechanical Bosses just seem to appear, with no backstory or real apparent reason for existing. Terraria has not official lore, but most thing have a certain internal logic. Or a certain internal Relogic, if you prefer. Regardless, the Mechanical Bosses made sort of sense back in 1.1 when they were the endgame, and it was just them. Then we got Plantera and the Golem, and the Lunatic Cultist and the crazy endgame events, all of which are tied together or seem to have some backstory behind them. The Mechs don't really fit in. Maybe this will help.
Mechanical Cultists spawn after their respective Mech is destroyed. They spawn in the Underground and Caverns at about the same rarity as Tim. They spawn standing still, similarly to the Lost Girl, and remove their hood before beginning to attack you when provoked. They all have 2500 Health and deal fairly significant damage, though their attack patterns vary. The Follower of the Brain would spawn after all three native Mechs have been destroyed on a Corruption world, and the Worshipper of the Worm would do the same on Crimson worlds. All drops are guaranteed.
Note: As there is no canon Mechanical BoC, I have based my ideas off of @Zoomo 's suggestion for The Motherboard. The name of the Soul differs from his proposal. Because I'm a rebel.
First we have the Acolyte of the Eyes, who attacks by constantly summoning Mechanical Eyes to attack you and teleports like a caster enemy. The Mechanical Eyes are comparable to Servants of Cthulhu in AI and relative strength. Drops: 1 Gold, Mechanical Eye, 3-7 Hallowed Bars, 5-10 Souls of Sight, Black Lens (1/4, @5raptorboy 's suggestion), Twins Blueprint, Trajectoreye, Hood of the Eyes, Mechanical Cultist Robes
Next we have the Devotee of the Skull. He attacks by throwing bouncing metal skulls at you and running/teleporting around like a Chaos Elemental. Drops: 1 Gold, Mechanical Skull, 3-7 Hallowed Bars, 5-10 Souls of Fright, Skeletron Prime Blueprint, Steel Skull, Hood of the Skull, Mechanical Cultist Robes
Next to last, the Worshipper of the Worm attacks by burrowing through blocks towards you like a worm enemy. He should have the highest defense to compensate for this strategy. Drops: 1 Gold, Mechanical Worm, 3-7 Hallowed Bars, 5-10 Souls of Might, Destroyer Blueprint, Mechanical Worm Staff, Hood of the Worm, Mechanical Cultist Robes
And finally, the Follower of the Brain, who floats in the air like the Lunatic Cultist, summons Signal Drones and bounces a hitscan laser beam around them. Drops: 1 Gold, Mechanical Brain, 3-7 Hallowed Bars, 5-10 Souls of Insight, Motherboard Blueprint, Command Amplifier, Hood of the Brain, Mechanical Cultist Robes
Now for some loot:
The Trajectoreye is an Accessory which shows the path of the currently selected weapon's projectiles as a dotted red line for ranged/magic weapons and as a arc-shaped red gradient for melee. Useful for knowing exactly what homing or splitting projectiles will do. Probably difficult to code.
The Steel Skull is another Accessory. It give a +20% increase to defense, useful for endgame builds. Credit for the idea of a %-based defense increase goes to @Battle Bee .
The Mechanical Worm Staff summons a Mechanical Worm minion which acts similarly to the Stardust Dragon, but deals less damage and has higher knockback (This is actually a nerf because enemies would be knocked out of the way of the damage). Ideally, it would prefer to stay in blocks and lunge out of them to attack. It can also fly using small Cursed Flame boosters.
The Command Amplifier is also an Accessory. It gives +5% Minion Damage and causes the Alt button to make all minions attack at the cursor's position.
The Bionic Head Implants are the last Accessory. They are made with the Trajectoreye, Steel Skull and Command Amplifier. The effects are combined normally, except that the Steel Skull's percentage increase is reduced to 17%. The higher percentage would be applied first, if both this and the Steel Skull are worn simultaneously.
Blueprints act exactly like paintings. They look cool.
Twins Blueprint - 'They can't kill what they can't see. Problem is, they see everything.'
Skeletron Prime Blueprint - 'Fore-warned is four-armed.'
Destroyer Blueprint - 'It is inevitable, but not invincible.'
Motherboard Blueprint - 'So that's how it works.'
The different hoods and the robes are vanity items. The eyes glow in the dark. The hood can also be crafted by hand into the Amorphmechanical Hood, which slowly cycles through several different appearances.
Finally, here are what the different accessories look like when worn.
So how'd I do? Anything need rebalancing? Do the sprites need work? How is the idea itself? Tell me.
Note: As there is no canon Mechanical BoC, I have based my ideas off of @Zoomo 's suggestion for The Motherboard. The name of the Soul differs from his proposal. Because I'm a rebel.
The Trajectoreye is an Accessory which shows the path of the currently selected weapon's projectiles as a dotted red line for ranged/magic weapons and as a arc-shaped red gradient for melee. Useful for knowing exactly what homing or splitting projectiles will do. Probably difficult to code.
The Steel Skull is another Accessory. It give a +20% increase to defense, useful for endgame builds. Credit for the idea of a %-based defense increase goes to @Battle Bee .
The Mechanical Worm Staff summons a Mechanical Worm minion which acts similarly to the Stardust Dragon, but deals less damage and has higher knockback (This is actually a nerf because enemies would be knocked out of the way of the damage). Ideally, it would prefer to stay in blocks and lunge out of them to attack. It can also fly using small Cursed Flame boosters.
The Command Amplifier is also an Accessory. It gives +5% Minion Damage and causes the Alt button to make all minions attack at the cursor's position.
The Bionic Head Implants are the last Accessory. They are made with the Trajectoreye, Steel Skull and Command Amplifier. The effects are combined normally, except that the Steel Skull's percentage increase is reduced to 17%. The higher percentage would be applied first, if both this and the Steel Skull are worn simultaneously.
Blueprints act exactly like paintings. They look cool.
Twins Blueprint - 'They can't kill what they can't see. Problem is, they see everything.'
Skeletron Prime Blueprint - 'Fore-warned is four-armed.'
Destroyer Blueprint - 'It is inevitable, but not invincible.'
Motherboard Blueprint - 'So that's how it works.'
The different hoods and the robes are vanity items. The eyes glow in the dark. The hood can also be crafted by hand into the Amorphmechanical Hood, which slowly cycles through several different appearances.
Finally, here are what the different accessories look like when worn.
1.1.1 - Gave the Acolyte of the Eyes a 1/4 chance to drop a Black Lens as suggested by @5raptorboy .
1.1 - 08/23/15 - Added the Mechanical Cultist Hoods, Robes and the Amorphmechanical Hood.
1.0.6 - 08/22/15 about 30 seconds later - Changed BHI defense increase to 17%.
1.0.5 - 08/22/15 - Changed Steel Skull bonus from flat +4 Defense to +20% increased Defense. BHI gives only a +15% increase to Defense. Original idea thanks to @Battle Bee .
1.0 - 08/21/15 - Added the everything.
1.1 - 08/23/15 - Added the Mechanical Cultist Hoods, Robes and the Amorphmechanical Hood.
1.0.6 - 08/22/15 about 30 seconds later - Changed BHI defense increase to 17%.
1.0.5 - 08/22/15 - Changed Steel Skull bonus from flat +4 Defense to +20% increased Defense. BHI gives only a +15% increase to Defense. Original idea thanks to @Battle Bee .
1.0 - 08/21/15 - Added the everything.
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