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Watch trailer on Steam ↗DEMONS' NIGHT FEVER
Drecom Co., Ltd. · Published by Arc System Works · Official site ↗
Last updated 4 Oct 2026
Enemies? Allies? Kill Kill Kill! The more you die, the stronger you become! Raising RTA Simulation RPG has arrived! Exhaust all forms of evil by fighting with the brutal Peon Exploitation System!
£34.99
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Price history
RPG, Simulation, Strategy · 2026 · More £30+ games
Delve into DEMONS' NIGHT FEVER, an intense RPG from Drecom where your survival hinges on the brutal Peon Exploitation System.
About this game
Enemies? Allies? Kill Kill Kill! The more death you bring, the stronger you become! Stat-Raising Strategy RPG is here!
Based on classic grid-based strategy games, this entirely new SRPG features the Peon Exploitation System—a brutal combat mechanic where you mercilessly sacrifice your own allies.
The more misdeeds you commit, the more vicious your army becomes, and the greater your advantage in battle!
Regain the lost power of the Devil, Giga Super Death, who was transformed into a baby, and crush the false god wearing a mask of justice!
■STORY
This is a story of another Earth, different from the one we live on.
Giga Super Death, the most wicked Devil of all, was just one step away from killing God…
when suddenly, he was transformed into a helpless baby.
Anticipating such a crisis, he had been working through the night to develop the "DEMONS' NIGHT FEVER" resurrection program—and finally, it was time to activate it.
Was it a prank of fate, or inevitable destiny?
The one ensnared in this suspicious ritual was Killshiro Katanaka, a gloomy young man who despises the world.
Due to their aligned interests, a bizarre pact was formed.
This is the story of pure EVIL, starring the Devil himself and his newfound disciple, Killshiro.
■Kill, kill, kill both enemies and allies! An unconventional strategic battle!
Exhaust all forms of evil using the Peon Exploitation System which sacrifices your allied Peons during battle!
Brutal tactics such as Kill Skills and Sacrifices that detonate your underlings with your own hands are the shortest route to victory.
■The more you sin, the stronger you become! Master your base to unleash pure chaos.
Pour in the Perverse Points earned through misdeeds to build your own ultimate evil army!
Within the limited time, make full use of suspicious Abductions and Pillaging to strengthen your characters to their absolute limits.
■A world that warps with every chapter! Dive into a story where no act of evil is off-limits!
Every time you defeat a chapter's boss, the game's situation completely transforms!
Experience the full thrill of diverse misdeeds, such as be a monster to defeat Super Rangers, be a witch to crush Magical Girls, or others!
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel Core i5 / i7
- Memory: 4 GB RAM
- Graphics: GeForce GTX1650 / Radeon RX6400
- DirectX: Version 11
- Storage: 5 GB available space
- Additional Notes: Requires a 16:9 resolution monitor for optimal performance.
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
【Chapter Preview】Do Your Very Worst! A Sneak Peek at Our Chaotic Campaign!
In this update, we’re giving you a quick preview of just a few of the chaotic chapters featured in the game!Check out the wild, unpredictable story developments and all the crazy evil deeds waiting for you!📖 Chapter 1: Notice Me, SentaiA third-rate corporate drone makes a deal with the Devil and becomes a "Monster"!?Conquer the local turf through misdeeds and crush the Pious Rangers standing in your way!📖 Chapter 2: Witches and StitchesYour next form is... a "Little Witch" (crossdressing)!?Complete the sinister "Ballpurgis Night" to reclaim your lost manhood! But standing in your way is your middle school crush, now a Magical Girl...!?📖 Chapter 3: You Are Already ShockWelcome to the wasteland—become a giant "Post-Apocalyptic Warlord" and activate the Human Eradication Protocol!Face past trauma as assassins attack, and protect your middle school crush from the spiraling despair!📖 Chapter 4: Blasphemy IncarnateCast away your humanity and awaken as a "Demon"!As Earth mutates into literal Hell, the ultimate battle of Harmageddon begins—! Repel God's relentless assassins and smash Hell itself to bits!Enemies? Allies? Kill Kill Kill! Do your very worst!💥And this is only a glimpse of what's in store! Stay tuned for more DEMONS' NIGHT FEVER news and updates, and don't forget to add the game to your Steam Wishlist!Read full article on Community Announcements (t.fujita)AnnouncementsOfficial
[Character Intro] Introducing the Main Cast of "DEMONS' NIGHT FEVER"!
Meet the four key characters appearing in "DEMONS' NIGHT FEVER" (releasing October 22, 2026), along with their profiles and English voice cast details!😈 Giga Super Death (English VA: Samantha Jeka)━━━━━━━━━━━━━━━━━━━━━━━━━━━━━In Cosmic Era Year 6,660,000, the God of Evil—an infamously sinister mastermind—was just one step away from killing the God. However, one day, he suddenly lost most of the magical powers and was transformed into a baby. To regain the lost power, activates the own custom-built resurrection program, an alternate-dimension ritual known as Demons' Night Fever, and decides to use Killshiro as a disciple.🤵 Killshiro Katanaka (English VA: Dominic Allen)━━━━━━━━━━━━━━━━━━━━━━━━━━━━━A corporate slave programmer in a third-rate exploitative game company, who harbors a deep hatred for the world. He mistakes the entire ordeal for a bizarre, stress-induced hallucination, and decides to embrace his role as the Devil's disciple to vent his frustrations on the real world. Furthermore, due to the adjustments of the ritual takes place—reveals his true mental age: stuck in middle school, which manifests as his appearance in this world.🎤 Mary Haley (English VA: Anya Floris)━━━━━━━━━━━━━━━━━━━━━━━━━━━━━A world-famous, popular idol overflowing with a strong sense of justice, who shares a past with Killshiro as a former middle school classmate. God has convinced her that "Killshiro is brainwashed by the Devil," and she blindly believes that her holy mission is to save him from the Devil’s grasp. Wielding the new powers granted by God, she steps into battle to strike down Killshiro and his allies, who she believes have been unwillingly enslaved by the evil Devil.😇 God (English VA: Charles Glover)━━━━━━━━━━━━━━━━━━━━━━━━━━━━━An entity that has been in a long-standing conflict with Giga Super Death.He gathers deep faith from the people by posing as a saint , but repeatedly commits various acts of sabotage in an attempt to erase Giga Super Death on behind. To completely ...Read full article on Community Announcements (t.fujita)AnnouncementsOfficial
DEMONS' NIGHT FEVER Opening Released! Main Theme "Dropout" by syudou!
The opening movie for our upcoming Raise-and-Run RTA Simulation RPG DEMONS' NIGHT FEVER (releasing October 22, 2026) is live today!Get a first listen to the main theme song "Dropout," written specifically for the game by hitmaker syudou! Check out the trailer to experience the high-energy fusion of pop, dark vibes, and total chaos!Watch the Opening Movie here! Theme Song Info:Title: Dropout / syudouMusic & Lyrics: syudouArrangement: RockwellRead full article on Community Announcements (t.fujita)
