Complete Monster

The Worst of the Worst. (This is YMMV, so characters the author considers monsters.)

4 vs. Satan:

* NONE

Alex in Princess Quest:

* NONE

The Stone of Power:

* NONE

The Three Kingdoms

* Vlados Palerius one of the masterminds of every atrocity committed in the game. In order to get rich he has cities massacred. He even has one of his men working for him by kidnapping his loved one. When King Charles IV. plans to negotiate with him, he attempts to have him executed admitting his people being just his pawns and wanting to create his massacres no matter what.

Dragondawn

* NONE

Harter Knall

* King Greyland is greed personified. After getting the throne, Greyland raises the taxes and has anyone who can't pay him killed and killing the two helpers for objecting his methods. He later plans to have the revolutionaries killed despite them being almost children and the S6-unit is only following him in killing every attempt at revolution because they're terrified of his army.

Hero Story

* NONE

Kill the Demons

* NONE

Satan Saga

* Satan is the highest demon lord planning cause as much mayhem as possible. In the past, he killed Trianuk's wife before making him to have killed everyone so he can avenge his wife having already killed the bounty hunter he send to kill him, with the entire castle massacred as result. And even after Trianuk finds out the truth, Satan leaves him alive to watch him massacre other bounty hunters. After Trianuk is killed, Satan sends his people to massacre other towns and when confronted by the heroes, Satan admits he did everything for fun and because he likes blood baths.
* Meynard the destroyer of towns is one of the two infamous criminals wanted for their actions. Before his debut he sends demons to destroy a town and after joining Trianuk wipes out Roy's town. Then he proceeds to slaughter a orphanage, maniacally laughing afterwards. Short after he teleports the king into a gas chamber to be executed by the Pope, shocking the Pope. Then he proceed to backstab Trianuk after the latter gave the throne for him. Even Satan refuses to hire him due to Meynard's backstabbing nature. When the heroes confront him and his top-enforcer Walter the two brag how they enjoy doing evil before fighting the heroes. After Walter fails, Meynard tortures and kills the guy, laughing sadistically. Even when he's about to be executed by that gas chamber, Meynard remains unrepentant to the end.
* Pope Bonmos is pettiness personified. At the start, he just seems to be a simple Pope, but who kills people by gassing them. But once an entire town admits it hates him, he has it massacred and another one so another priest can't be more liked than him. After multiple people find out the truth, he no longer can hide it and about to be confronted, he kills his own people for being weak before trying to kill the heroes who try to punish him for his misdeeds.
* King Greynor is the superior to Pope Bonmos and no different from him. After finding out about his massacres, he promotes Dagey to be his general and then has him executed. Short after he has his own kingdom wiped out so people won't remember the Pope's massacres and then plans to do the same to the kingdom Dagey comes from.

Story of Hero:

* Elizon Tataros is the leader of the after him named Tataros-cult, who desires to become the king by taking the throne from his brother. His first act is to kill a emissary just to warn his brother. When one of his minions fails to get one of the books, he tortures his right-hand man for failure. Later, he sends his minions to get his throne, burning down the castle and torturing his brother to death. During the climax, Elizon summons Titan to destroy the castle again, planning to rebuild it, uncaring about the many people he'd kill by doing so.

The Legend of Devils

* NONE

The Sidestory Duology:

* NONE

The Time Of Bloody Fear:

* NONE