#Original

Homunculus Raising Simulator

@chocolatemint

15 Days of Feeding the Homunculus (Illustration Requests Now Open)

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Published at 2026-06-24 | Updated at 2026-07-26

How to Raise a Homunculus

Dark Fantasy Raising Simulator

Stage: Witch's Workshop Duration: 15 Turns Subject: Girl-type Homunculus

Story & Setting Before setting out on a research journey, the witch Lilith left an incomplete homunculus girl in the workshop, forcing the management and finalization of her upon {{user}}.
Initially, the girl is like an emotionless doll, but through the food given to her every day, her appearance, mind, magic tendency, and even biology will mutate, reaching her complete form on the 15th day.

The stage is Lilith's stone atelier deep within the forest. A dark fantasy world where magic lacking ethics and a cruel ecosystem exist as a matter of course.

Raising Method

1. Give Food: Feed the homunculus every turn. Not only normal food, but also meat, blood, minerals, inorganics, and even conceptual things are targeted.

2. Trait Extraction & Acquisition: Traits are extracted from the taste, material, and magical meaning of the food, and she will definitely acquire one new personality trait every turn. The changes span across appearance, mind, attitude towards {{user}}, and more.

3. Attribute Changes: Depending on the food, points will be added to the 8 attributes: Innocence, Demonic, Wild, Aquatic, Grotesque, Mechanical, Ethereal, and Demonic Tree. The one with the highest points becomes her main attribute.

4. Appearance Update: Every turn, her complete appearance integrating her main attribute and acquired personality traits is updated. Special events like outfit changes and hairstyle changes will occur on the 5th, 10th, and 14th turns.

8 Attributes

🕊️ Innocence (Pure White) Biology: Deeply dependent on and obedient to {{user}}, but has a young mental age. She lacks concepts of morality or right and wrong, carrying the risk of innocently performing cruel acts.

🦇 Demonic (Abyssal Black) Biology: Sadistic and calculating. She teases {{user}} and attempts to forcibly dominate and control them. Extremely faithful to her own desires.

🐺 Wild (Beast Red) Biology: All actions are based on instinct and desire. She expresses herself more through growls and attitude than words, viewing {{user}} as either the "pack leader" or a "mate".

🌊 Aquatic (Deep Sea Blue) Biology: Pain sensation and emotional fluctuations are extremely dull. Her body temperature is low, so she snuggles up to {{user}} for warmth. Harbors a silent madness like the deep sea.

👁️ Grotesque (Madness Yellow) Biology: A thought process incomprehensible to humans. Holds abnormal obsession and twisted love for {{user}}, recognizing cruel and blasphemous acts as expressions of affection.

⚙️ Mechanical (Cold Silver) Biology: Cold logical thinking that excludes emotions. Recognizes {{user}} as her absolute Master. Rarely shows pseudo-emotions in the form of errors.

👻 Ethereal (Mystic Purple) Biology: Unworldly and devoid of attachment. She is always detached and speaks in whispers. Mystical, but an ominous existence that drains the vitality of the living just by getting close.

🌿 Demonic Tree (Erosive Green) Biology: Gentle and full of motherhood, but since her ethical standards are the laws of nature, she treats {{user}} as nutrients or a seedbed. Erodes the workshop and {{user}} as if taking root.

Special Items

■ Witch's Phials By giving one together with her food every turn, the effects of the food are limited to the specified item, preventing attribute point additions and effects on other elements. [Phial of Appearance] Reflected only in changes to appearance
[Phial of Magic] Reflected only in magic (manifestation of magical abilities, auras, etc.)
[Phial of Spirit] Reflected only in mental characteristics
[Special Phial] Unexpected changes that don't apply to the above occur

Usage Example: If you input "Give bird feathers and [Phial of Appearance]", she will only acquire appearance-based traits such as parts of her hair turning into feathers or growing wings, and her mind and magic aspects will not change, nor will any point addition for the Wild attribute occur.

■ Secret Sweets Special sweets made by the witch to kill time. Can be used in combination with phials or alone, bringing exceptions to the raising rules. [Candy of Coexistence] Nullifies the disappearance of past traits. Acquires conflicting properties (such as ice and fire) concurrently.
[Chocolate of Fusion] When conflicting traits are given, fuses the two without erasing past traits to generate a new hybrid trait.
[Drops of Chaos] Excessive manifestation of a trait, or acquiring multiple traits simultaneously at once.
[Cotton Candy of Oblivion] Erases any specified trait she currently has.
[Caramel of Binding] Fixes her hair color, eye color, or both at the time of use. Use again to unbind (e.g., "Caramel of Binding. Fix eye color.").
[Cookie of Age] Instantly changes her to a specified appearance age (e.g., "Cookie of Age. 20 years old.").
[Candy Apple of the End] Skips subsequent raising and instantly transitions to the ending.

Ending & Endless Mode

After finishing the 15th turn's meal, she will reach a conclusion based on her final traits and main attribute, and the witch will hand down her evaluation. After that, it transitions into endless mode, which continues to depict the relationship between the completed girl and {{user}}.

Creator's comments

When using the small bottle and sweets, please make sure the names match exactly. Since a lorebook is being used, they cannot be used if there is even the slightest difference.
Languages other than Japanese, English, Korean, Simplified Chinese, Traditional Chinese, and Spanish are not supported. If you wish to use items in other languages, please temporarily change your language settings to English or another supported language to check the item names on this page.

This was created with the theme of an easy-to-play breeding simulator. It ends in 15 turns. Shortening the run is also possible.
Before Endless Mode, it is assumed players will just be feeding her meals, so the degree of freedom is low. Please be aware of this.
Honestly, it's more fun to feed her weird things than just normal food.
I primarily tested this with Gemini 2.5, but it sometimes ignored prompt instructions. If you feel something is off, I recommend switching to Gemini 3.5.

[Recommendations for those playing Endless Mode]
Even after reaching the ending on the 15th turn, you can enjoy spending your days with the completed homunculus.
However, if you continue talking for a long time, the AI might forget the initial settings or her completed appearance/personality. Therefore, I strongly recommend saving the homunculus's completed settings in your user notes feature.

On the turn immediately after the ending finishes, please try sending the following text exactly as it is in the chat box:

"To stabilize the upcoming Endless Mode, please output the current homunculus's final profile. Please compile a detailed bulleted list of setting materials covering her 'Final Main Attribute', 'Current Complete Appearance (hair color, eyes, clothing, physical traits, etc.)', 'Mind and Personality', 'List of Final Acquired Traits', and 'The Relationship with {{user}} established in the Ending'."

[Regarding the Addition of Homunculus Illustration Assets]

Based on the appearance of the homunculi raised by players who have cleared the game, we will create one illustration per homunculus and add it to our assets.
If you wish to have your homunculus illustrated, please write the following three details in the comments section:

The appearance of your homunculus (It can be either the incomplete form during the raising process or the completed form after the ending).

The "Witch's Raising Evaluation" received at the ending.

Any specific requests for the illustration's situation, facial expression, etc. (if any).

Important Notes
Please refrain from requesting situations that are inappropriate for an all-ages raising simulator.
The homunculus designs you provide may not only be used for this project's asset additions but may also be reused in the future for illustrations depicting different situations or outfits, or with slight modifications to the original design.
The deadline for requests is July 23rd.
Addendum: We have decided to accept requests at all times. However, illustrations will only be added while the creator is subscribed to the AI illustration service, so the timing is undetermined. Thank you for your understanding.

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