Disclaimer: I do not own Overlord & Doom which are both owned by their respective creators.
-Unknown Space, Fortress of Doom-
The Slayer was in his room in the Fortress of Doom, checking some files detailing the numerous demons of Hell. However, there are forces that he knows aren't quite demons but are still affiliated with Hell. Such as the creatures of steel aka the Machines of Hell.
He remembered them. He fought them long ago. They were just as dangerous and vicious as the demons. Running on Argent Energy and violence.
He had heard about their return to another world. It was a world stuck in the medieval era but with magic and other creatures. He heard many things about it, as many people from another world were sent there for mysterious reasons…
And it was time to see for himself what was happening.
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-Meanwhile…-
BGM: Into the Fire ~ Combat - ULTRAKILL Soundtrack Extended | Heaven Pierce Her
The port city of Re-Robel in Re-estize had become a bloodbath. Torn apart by creatures of steel, unlike anything their victims had seen before. Guided by a desire for blood, bathing themselves in the blood of their victims.
Several groups of machines, known as Sharpeners, brown and thin humanoid machines with claws for hands and pointy feet, were easily tearing through the guards stationed there while stealing their blood through their claws which act as syringes to fuel themselves.
One machine, in particular, colored dark orange with a triangle head with two mismatched yellow visors and black joints, sliced apart a family of four with ease and proceeded to suck up their blood. This is a Chain-Arm, a Heavy Machine with a chainsaw as one arm and a chaingun as the other arm.
It remembered its objective as programmed into its directives:
Argent is Power.
Blood is Fuel.
This New World is full.
The machine looked over to see a field in the distance being burned to the ground by brown and red Fodder Machines by the name of Fieldburners. They were just done throwing oil bombs and incendiary bombs to flush out anyone hiding in there before harvesting their blood.
The Chain-Arm and its fellow robots didn't seem to care about the gold and food of this place. No, they were more interested in the blood of all its inhabitants.
Because, after all, Blood is Fuel.
The Chain Arm heard a noise and turned to see a child. It looked menacingly at the child.
"Please please I want to see my daddy and mommy…" The Child said as the Chain-Arm approached him while revving up its chainsaw arm.
The Chain-Arm approached the child while raising its Chain-Arm seeing it as an easy target to get the blood off of. Somewhere in its electronic database, it had something akin to a thought that said "My latest victims were probably his parents. So his wish will be fulfilled." in something akin to a sick sense of humor.
The child closed his eyes hoping this nightmare will end.
Before it could do anything, a portal opened up and the Slayer stepped out while cracking his knuckles. The robot instantly recognized this man and immediately charged at him. The small bag of blood could wait.
The Slayer pulled out his Gauss cannon and opened fire at the Chain-Arm, taking out its arm. This enraged the machine as it raised its chaingun arm to turn the Slayer into Swiss cheese.
However, the green armored man took out his Super Shotgun and shot it in the chest two times. He then grabbed the machine with his two hands and with a mighty heave ripped it in half much to the surprise of the child, unleashing a shower of blood that thankfully didn't splatter the child.
Several Sharpeners began to rush to him from the alleyway. However, he pulled out his Chaingun and let loose at the machines, tearing them to pieces. This action caused the other machines of Hell to realize the Slayer was there and promptly ignored everything to go fight him.
As soon as he was out of the alleyway, he was almost burned alive by a group of Fieldburners who threw incendiary grenades at the Slayer but he dashed away from them. He then pulled out the Gauss Cannon and charged up the siege mode before firing in the Fieldburners' general direction, destroying all machines caught in the blast. Other machines were showing up to attack him, like two Walking Turrets.
Walking Turrets are grey and red two-legged robots whose torso is the Chaingun's Mobile Turret, taking the term "Mobile Turret" quite literally.
These two machines proceeded to anchor their legs into the ground before their singular minigun turned into a quadruple barrel minigun which then spewed out a lot of bullets at the Slayer. He quickly got out of the way, though some Fieldburners were unfortunate enough to be caught in the bullet storm.
The Slayer rushed up to one of the Walking Turrets before performing a Blood Punch, uprooting that machine off of the ground. The Slayer then shot it with his Super Shotgun, damaging its chassis. The Machine tried to kick the Slayer with its slow but strong kick but the Slayer caught it before ripping out the entire leg and using it to bash the robot to pieces.
The Slayer then pulled out the rocket launcher and fired a set of four rockets at the other Walking Turret, leaving only its lower half.
"Help me!"
"Please someone help us!"
The Slayer heard the voices and rushed to their point of origin. As he arrived at a road. The Slayer was immediately pelted by beams fired by advanced laser rifles. He saw that they were coming from a house. The Slayer then chucked some grenades into the house which blew it up, revealing that the ones calling for help were none other than Iron Bones who tricked him to go there by imitating the voices of people who need help.
Iron Bones are these mechanical-looking skeletal machines that have dark gray and red color scheme. Their red optic eyes seemed to glare at the Slayer before they opened fire with their plasma rifles, unleashing red blasts of plasma at the Slayer.
He simply dodged the attacks before pulling out his Plasma Rifle and opening fire at one Iron Bone, heating it before exploding. The Slayer, seeing that his plasma rifle was overheated, rushed up to three Iron Bones and unleashed a heat blast that killed them in a single attack.
But then, the Slayer was punched in the face and sent out of the house by crashing through a wall. After he got back up, he saw that he was punched by a Steel Bone. By its side were two remaining Iron Bones.
Steel Bones appear to be like Iron bones, with a similar color scheme but much shinier and taller than them. They also wield two plasma rifles equipped with the heat blast.
The Steel Bone looked at the iron bones and the two other machines looked at it. They all nodded before letting loose at the Slayer who immediately dodged out of the way. The Slayer then fired a rocket at the Steel Bone but it barely seemed to affect it.
Then the Slayer pulled out the Plasma Rifle and set it to the microwave beam. He aimed it at one of the Iron Bones and fired a stream of heated plasma. The Iron Bone was immediately overheated by the continuous stream of energy and exploded, which unleashed a concussive blast that temporarily stunned the Slayer's enemies.
He then used shot more plasma shots at the Steel Bo,e before unleashing a heat blast that killed the other Iron bone but staggered the Steel Bone long enough for the Slayer to rush up to it.
The Slayer grabbed the Steel Bone and then rammed his hand through its chest where its power source was and then ripped said power source out and crushed it which cause the machine to fall and exploded into blood, showering the Slayer in it.
After that was done, the Slayer looked over and saw that those machines were the last active ones and now the city was saved. However he saw many corpses of the inhabitants, be it soldiers trying to protect it or the civilians they tried to protect. He looked and saw a dead child holding the hand of her dead mother.
He clenched his fists at seeing such cruelty by those machines. The surviving inhabitants gathered to see their green-armored savior wielding the plasma gun in one hand and the super shotgun in the other.
Unknown to all, they were being watched.
BGM End.
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-Meanwhile…-
Ainz Ooal Gown saw the whole event through his Mirror of Remote Viewing. Albedo was right beside him and also watched the events unfold.
He was concerned with these new creatures which looked like nothing he had seen in Yggdrasil. Those robots showed up and massacred an entire city for its blood, no such things existed in the game. They reminded him of the automatons like CZ2128 Delta, but these things bleed like humans and seem to run on blood.
Ainz knew that it was only a matter of time before they turned to his tomb. He doesn't know how strong these machines were, and he doesn't like things he knows nothing about.
As for Albedo, she doesn't seem to like the new creatures killing the people Ainz wishes to conquer. She frowned. The succubus would have to talk to her fellow Floor Guardians about this new threat and possibly prepare if these...whatever they are...threatened Nazarick.
"Disgusting," Albedo said with a sneer, seeing these machines as lower life forms.
"Hmmm, I agree. They appear to feast on blood like vampires," Ainz said as he remembered seeing a Chain-Arm sucking up the blood of a dead human through some sort of tube.
Albedo knew that Shalltear would absolutely hate these things, seeing them as a mockery of her kind. She wondered what the look on her face will be when she hears the news.
Though the thought of her rival getting mad DID sounds amusing, this was no time for amusing distractions as the situation with the machines couldn't be taken lightly.
Something had to be done.
"Lord Ainz? Should I gather the Floor Guardians to discuss this new threat?" Albedo asked.
"Yes. It is imperative that they know," Ainz said. "However…we also need to discuss this new person…he may or may not be a Supreme Being…"
"Do you think so, Lord Ainz?" Albedo asked.
"I am not entirely sure…but we need to know if he is. Now then. Let us assemble the others…" Ainz said as he and the succubus saw that the Slayer entered a portal after the threat was gone.
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-?-
In a distant part of Hell, there was a factory the size of a continent. This is where many machines, all fueled by blood and powered by Argent Energy, are made. Fittingly, it was called the Bloodmachine Factory.
Inside one of the many facilities of the place is a testing area overseen by a man wearing a black coat, top hat, and white beak mask akin to a plague doctor. His visor looked at some of the prototypes of a brand-new machine he made.
He has long since given up his original name, now everyone calls him the Mad Doctor, and he is rather infamous for being the creator of the many machines of hell who run on Argent Energy & Blood.
As for the prototype machines, they were built with his specifications to be able to match the Marauders in fierceness and combat and also to give the Forces of Hell an edge against HIM.
They were known as the K Models. His creations were humanoid machines with sleek designs and large glowing eyes that made up most of their heads. However, each has a variety of colors that makes them distinguishable from one others.
They were programmed to use the weapons of the Slayer, like a purple K Model using a Super Shotgun to obliterate a horde of Gargoyles and a green K Model using the Heavy Assault Rifle to fire micro missiles which quickly took down a Hell knight.
However, out of all of them, the Mad Doctor took notice of one K Model that stood out amongst the rest.
This one appeared to be dark green and was wielding all of the Slayer's weaponry and could quickly swap weapons mid-battle, like switching from the Gauss Cannon to the Super Shotgun to quickly take down one of the two Barons it was fighting.
The Mad Doctor saw that on its side of the eye it read K1, it was the prototype, the first K Model he made, and he was interested. Sure, the other K Models were known for getting blood off their opponents to be healed and recover fuel but this one's thin platting allowed it to recover all damage just from the blood splatter of its deadly foes, allowing it to fight for much longer.
"Ho ho ho! You are indeed an interesting one. You will make for a fine rival against HIM!" the Mad Doctor laughed loudly as the K Model proceeded to use its very own Blood Punch to deliver an uppercut that caused the second Baron of Hell's head to come off, spewing a lot of blood which it actively began to soak in.
A/N: Yes. I know some of the machines are clearly based on the Ultrakill Machines, the ones that run on blood. And yes, I know those models are like V1 if they were mass-produced. Also yes, terminator stuff.
And yes…I did watch the terminator movies and also played Ultrakill up until Act 2 by the time this chapter came out.
Now the reason why I started this fic is that I do wonder how Nazarick and the New World would fare against the demons of Hell. I also read other stories in which other players and guilds are transported to the New World. I want this fic to be very different from them as canon demons of Hell will show up alongside my own creations of forces related to Hell like the machines.
As for who the Mad Doctor is? Well, you will have to find out after you read more of this story.