
Screenshots

Watch trailer on Steam ↗The Brave of Boner and the Demon of Halphas
AVANTGARDE · Published by 072 Project, 072 News · Official site ↗
Content notice: This game contains interspecies sex, non-blood-related incest, BDSM, and group sex.
Very Positive — 96% positive (296 reviews) · 10 achievements
Last updated 28 Sept 2026
To clear his dishonorable title, the hero Theo sets out to liberate a city under demonic control. However, the companions joining him on his journey turn out to be one beautiful demon after another?!
£11.79
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, RPG, Casual · 2025 · More £5 - £15 games
Embark on Theo’s journey to reclaim his honor by liberating a demon-occupied city. Along the way, team up with surprising companions in this casual RPG from AVANTGARDE.
About this game
※For the best experience, please enable voice playback in the options menu.


The protagonist, Theo, is a young man who vows to expel demons from the overworld. After going through a lot, he finally became a Brave and embarked on his journey.
The destination is the city of Manko in the Kingdom of Goodland.
Vicious demons called Halphas are occupying the streets.
But what appeared in front of Theo were cute demon girls.

As enemies, what will happen ahead of them ...
No one knows the answer yet.
“I will liberate Manko City and make those guys who look down on me admit that I am a top-notch Brave!”


■ Kingdom of Goodland
A constitutional monarchy located in northwest Europe.
It is composed of many islands such as Goodland Island.

The adventure takes place in a city located in the northwest of the Kingdom of Goodland—Manko city.
The northern part of the Kingdom of Goodland was dominated by the demon army, and Manko city was once an important defense stronghold.
But the city has fallen a few months ago
and is currently under the control of a Demon Count named Halphas.
■ Glossary
– Demons –
The inhabitants of the Hell Empire who live deep underground.
They are more powerful than humans and they can use magic.
They established a chivalric order—The Flies, which only accepts the best among the best, and launched an invasion of the overworld.
The reason for the invasion remains unclear.
– Bestowal –
Items given by God to grant humans ability to fight against the demons.
There are various types such as weapons, restraint items, and items that can measure magic values.
– Brave –
A common name for people who fight demons.
The First Brave was a title given to the first King of Goodland—King Artorius.
Now, there is a two-year Brave School. Everyone who graduates from the Brave school and joins the Kingdom military can be called the Brave.

All female characters' H events are fully dubbed, and all dirty talks are not censored
The Protagonist's actions will also affect the erotic values!
Depending on the values, the sexual content may change!

As enemies, the demon girls are of course very resistant to the protagonist at first.
Use the power of the Brave to discipline their bodies and make them more erotic!
As the time spent on the journey together increases, so do their affections, and they may have a lovey-dovey ending...!?
Whether it's loyal to one or love for all, it's you to decide!
From rape PLAY to sweet harem orgy, enjoy the shameless life with three demon girls!



Layla Halphas
【Race】Demon
【Age】Secret
【Height】162 cm
【Weight】54 kg
【Breast size】E cup
【Birthday】December 24th
【Background】
A demon born as the second daughter of the famous Halphas family.
She has a strong sex drive perhaps because of her mother being a succubus.
She is interested in humans and sneaks into the overworld occasionally to observe them.
Her hobby is masturbating with human boyish fantasies.
A virgin, of course.

Mia Halphas
【Race】Demon
【Age】Secret
【Height】150cm
【Weight】About three pears
【Breast size】G cup
【Birthday】May 17th
【Background】
A demon born as the third daughter of the Halphas family.
She is a NEET and only left home because her parents forced her to.
She likes romance novels and is always reading them in her room. Sibling love is her favorite.
She has no sexual experience at all.

Rose Halphas
【Race】Demon
【Age】■■
【Height】167cm
【Weight】■■kg
【Breast size】F cup
【Birthday】March 13th
【Background】
A demon born as the first daughter of Halphas family.
She was born with outstanding talents, and soon after her birth, she was treated as the heir of Count Halphas.
She has a cold personality and it's hard to tell what she's thinking.
She is popular because she is a beauty, but she has never had a boyfriend. Probably a virgin.

■General
Game type: RPG
Resolution: 1280×720
Basic CGs: Over 40 (Diffs not included)
Dubbing: H Events, female characters dialogue in the main story (total dubbing amount of more than 6,000 words)
■System
Number of Endings: 5
Difficulty Setting: Yes
Illustration Costume change: Yes
Pregnant Illustration: Yes
System Requirements
Will my PC run this? →Minimum
- OS *: Windows® 7/8/8.1/10/11
- Processor: Intel Core2 Duo or better
- Graphics: DirectX 9/OpenGL 4.1 capable GPU
- Storage: 2 GB available space
Recommended
- OS *: Windows® 7/8/8.1/10/11
- Processor: 2+ GHz Processor
- Memory: 4 GB RAM
- Graphics: OpenGL ES 2.0 hardware driver support required for WebGL acceleration. (AMD Catalyst 10.9, nVidia 358.50)
- Storage: 4 GB available space
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
You Could Have Chosen Pure Love. You Opened the Box Anyway.🔥
You wake up on a mysterious island with no memories. The first person you see is a nun named Sienna —She helps you to your feet, not knowing that in that very moment, an unbreakable bond has already quietly formed between you.A barrier seals off every way out. Time flows gently on the island, the distance between you slowly closes, and feelings begin to waver."I like you." Only after those words are spoken does the story truly begin. But somewhere along the way, she starts saying less —and the look in her eyes becomes something different.The pure love ending has never disappeared. It's right there, waiting for you.But another path has always had its door open — and sooner or later, you'll find yourself wanting to open that Pandora's box. 🔥Wishlist it now 📢AVANTGARDE Series of works💕COMING SOONFollow us! Steam X DiscordRead full article on Community Announcements (072 Project)Patch NotesOfficial
(2026/08/24) Updated.
(2026/08/24) Updated error images.Read full article on Community Announcements (kk77123)AnnouncementsOfficial
You Could Have Chosen Pure Love. You Opened the Box Anyway.🔥
You wake up on a mysterious island with no memories. The first person you see is a nun named Sienna —She helps you to your feet, not knowing that in that very moment, an unbreakable bond has already quietly formed between you.A barrier seals off every way out. Time flows gently on the island, the distance between you slowly closes, and feelings begin to waver."I like you." Only after those words are spoken does the story truly begin. But somewhere along the way, she starts saying less —and the look in her eyes becomes something different.The pure love ending has never disappeared. It's right there, waiting for you.But another path has always had its door open — and sooner or later, you'll find yourself wanting to open that Pandora's box. 🔥Wishlist it now 📢AVANTGARDE Series of works💕COMING SOONFollow us! Steam X DiscordRead full article on Community Announcements (Meiko)AnnouncementsOfficial
An Undercover Cop Slowly Turned into Livestock ❗ The Milking Series Returns —🔥
In a near-future world, a global protein shortage has become a national crisis.As a solution, “Human Farms” were established—legal institutions that transform women into continuous milk-producing resources.Driven by her strong sense of justice, detective Iori goes undercover to infiltrate the illegal underground organization known as the “Black Market Human Farm,” determined to uncover the truth behind it.Milking and conditioning mechanics remain the core of the series, and Investigation evolves this experience to a whole new level.Brainwashing. Immersion in aphrodisiac tanks. Gradual “training” that reshapes her body…She came here to bring justice to those behind it all.But on this farm, there’s only one rule—everyone who enters eventually becomes part of the system. 🔥👉 Add it to your wishlist now and be the first to get notified on release 📢Coming SoonFollow us! Steam X DiscordRead full article on Community Announcements (Meiko)AnnouncementsOfficial
A thrilling, shameful, Japanese fantasy awaits🎴 《Oni-no-Kuni: Miozuki's Descent》is out now🔥
https://clan.fastly.steamstatic.com/images/45835514/678bdd5807d5d772827fc699c0dce01e1bc1f31d.png https://store.steampowered.com/app/3801270 Shimomura Miozuki, a scholar-warrior, shines with justice One day, crossing the zebra stripes, a blinding flash engulfed her When she came to, she was already in an isekai⁉️ https://clan.akamai.steamstatic.com/images/45835514/52328728996e8026b6fa49ddc9b209b4cbbaa5bf.jpg She arrived in a Wafu world ruled by the Great Oni, a menacing threat to humanity Miozuki, fueled by justice Fighting fierce enemies while facing naughty, lustful traps👹 https://clan.akamai.steamstatic.com/images/45835514/ca5325b16aef5dfb42698df728169b1de4a0820e.jpg In addition to the main story, you can also engage in side stories in yukaku, or assist in the reconstruction of the female characters' villages, interacting with female supporting characters 🩷 https://clan.akamai.steamstatic.com/images/45940228/faa43ffb1cc27f58957378f69704cb2ba71040a2.jpg Unite with Kureha the kitsune miko and Shizuna the kunoichi to crush foes 🤝 https://store.steampowered.com/app/3801270 COMING SOON https://store.steampowered.com/app/4218020 https://store.steampowered.com/app/3959930 https://store.steampowered.com/app/3804180 https://store.steampowered.com/app/4307340 Follow us! Steam X DiscordRead full article on Community Announcements (072 Project)






