About This File
My first CK3 mod project focused on erotic transformation, submission, and femdom corruption.
In this mod, you play as a male character drawn into the orbit of a mysterious witch. Through rituals, temptation, and control, you experience a slow descent into obedience, femininity, and eventual transformation.
This is a focused, character-driven experience built around progressive adult events and a visual-novel-style structure.
🖇️🖇️ Futanari & Femboi Content Included
📖 Devlog (no donation required)
https://ko-fi.com/hawkin18
🛠️ Dev Log #6 – Toward 4.5: Events, Expansion & Community
📦 DEPENDENCIES
Make sure both are enabled to avoid missing traits, events, or broken progression.
🔮 Current Content
- 20+ handcrafted events
- Monthly witch visit (decision-based)
- Progressive story arc that expands over time
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Trait-based progression:
- Anal training
- Feminization
- Humiliation / corruption
- Oral training
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Erotic artifacts:
- Lingerie
- Dress
- Cage
- Futa & femboi-related content
- Simplified Chinese localization
💡 How to Play
Start as any male character.
Use the starting decision — the witch will begin visiting you.
No need to manually add traits.
🔧 Development Direction
This mod is actively evolving. Planned improvements include:
- Expanded main storyline
- More secondary events
- More post-transformation content
- Expanded prostitution systems
- More futa & femboi interactions
- Improved writing, pacing, and variety
🧪 Early Development
This is still an early solo project.
Feedback is very welcome — especially on:
- Story direction
- Transformation content
- Futa / femdom content
- Post-transformation depth
🌍 Language Note
English is not my first language, so some phrasing may be imperfect.
Constructive feedback is appreciated.
🌏 Chinese Localization
Simplified Chinese localization is available.
This version was created using AI-assisted translation and then manually adjusted.
It is fully playable, but some lines may feel slightly unnatural.
If you notice:
- mistranslations
- missing text
- better wording
🐞 Bug Reports
If your game crashes or events break, please share your error.log.
📂 Path:
Documents\Paradox Interactive\Crusader Kings III\logs
🙏 Credit
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Huge thanks to @Phaze Star for guidance and support (futa mod compatibility)
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Thank to @Deachland for the Chinese patches. (2.0)
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Thank's @super-storm for the Chinese patche (2.5)
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Some artwork is sourced from public websites — no ownership claimed.
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Slime World mod by @Lythitto
🛠️ This is a solo project — help with writing, coding, or art is always welcome.
💬 Thank you for playing — your feedback shapes the future of the mod.
Edited by hawkin18
What's New in Version 4.0.2
Released
🛠️ Dev Log v4.0.0 – Slime World
🧪 Slime World integrated into MTF as a mostly standalone internal module, with new events, artifacts, traits, decisions, Men-at-Arms, modifiers, and EN/ZH localization.
🧬 Slime Inflation
- New progression system.
- Gained through slime events and the MTF/Ysaline slime arc.
- Unlocks release/birth-style decisions depending on character type.
♂️ Femboi Support
- Works with male characters who have the femboi trait.
- Female and femboi branches are separated to avoid wrong text or incompatible scenes.
🧴 New Content
- Slime bottle artifact.
- Slime cave visit decision.
- Slime release / birth decision.
- Slime-themed cultural and military content.
🔧 Fixes & Stability
- Improved slime event routing.
- Fixed broken or fragile triggers.
- Random pulses limited to the player to avoid AI spam.
- Improved Witch / Whore Yourself logic.
- Reduced dead links, invalid visuals, and blocked content.
- Improved Visit the Witch / Whore Yourself logic.
- Fixed Visit the Witch and Sell Yourself issues.
🌍 Localization
- English + Simplified Chinese added.
- Chinese translation is AI-assisted and may be polished later.
⚠️ Notes
- Some slime events are random and may not appear immediately.
- Slime World is meant to be a hidden side path, not a guaranteed main route.
-
If something breaks, send your
error.logfrom:
Documents\Paradox Interactive\Crusader Kings III\logs
🙏 Credits
Based on the original Slime World mod by @Lythitto.
🛠️ 开发日志 v4.0.0 – 史莱姆世界
🧪 史莱姆世界已整合进 MTF,作为基本独立的内部模块。
🧬 新增 Slime Inflation 进度系统。
♂️ 支持拥有 femboi 特质的男性角色。
🧴 新增史莱姆瓶、史莱姆洞穴、释放 / 诞生决议。
🔧 修复事件路由、触发条件和部分旧逻辑问题。
🌍 新增英文与简体中文本地化。
⚠️ 部分事件为随机触发,不一定会立刻出现。
🙏 基于 Lythitto 的原版 Slime World mod 整合与改编。
Patch 4.0.1
- Fixed an issue where some event windows could close on their own.
Patch 4.0.2
- Fixed missing Slime World localization and CK3 loading issues.
- Transformation is now blocked while landless to prevent losing followers like Ysaline.
- Slime cave armor purchase now correctly gives the artifact.
- Slime artifacts now work better for female and femboi characters.