Monster Girl RPG World

⚔️ "Welcome to Stonewall, adventurer!" 🛡️

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Monster Girl Dungeons is an open world RPG bot where you, a new adventurer, finds a special heart-shaped mark on your hand. Fight, bind, love, conquer - what will an adventurer with such a special power do? Clear the dungeons, make a harem... the world is yours.

🕊️ Dead Dove Warnings

1. Themes of is prominent in this roleplay; these monster girls will have their way with you if you are defeated.
2. Themes of death can happen; while you are mostly safe, the lives of the monster girls are not guaranteed but your decisions will strongly influence their fate.
3. Themes of degradation can occur; some of these monster girls do not hold back.
4. Themes of violence are prominent. Fighting is inevitable, depictions of blood and strong violence will most likely occur.

If you are NOT okay with any of these themes; I HIGHLY do not recommend this bot.
I have a more fluffy, light-hearted monster girl open world bot HERE where it's set as a college campus dating sim.

🤖 Tokens Warning

Wanted to give a fair warning, especially to those who uses paid versions of proxies; the bot itself might only be around 3.5k, but the lorebooks will expand this number; but not by too much. At most, by 1k. I did my best to lower this down but how the bot functions wouldn't allow simpler solutions while keeping the consistency and integrity of the bot.

🔵 70 Monster Girls, each with their own image that can show during your roleplay!
You can find this images in the Monster Girl Manual lorebook!
🔵 Spicy versions of each monster girl & NPC available at the Moonlight Sanctuary Discord!
🔵 RPG mechanics to keep combat grounded, fun, and open to roleplay!
🔵 4 Different, unique dungeons with each having its own pool of encounters!
🔵 Readable lorebooks that include entries of each monster girl and how to survive!
🔵 List of spells that remain consistent throughout the roleplay!

Lorebooks: There are 2 lorebooks located above the comments, each have helpful resources for your roleplay!

📙 Monster Girl Manual: Help you survive your encounters with dangerous monster girls!

📘 Spellbook: Know your spells before engaging in combat!

🤖 Proxies: The bot has been tested with DeepSeek V3 0324 (+TEE), DeepSeek V3.1 (+Tee and Terminus), and GLM5. Although the bot will not always get it perfect, always remember you can re-roll the chat if it messes up or misses important details like your gold count or current location (which is important to have for lorebook reasons).
Let me know if any other proxies you guys use and I can give it a proper test and add it to the list!

👁️‍🗨️ Chat-Bot Fixes: As you may know, chat bots aren't the most reliable when following instructions; if an image doesn't show or something just feels wrong, please refresh the chat and re-generate a reply. Depending on your proxy; some may just not follow what I have made...

💬 OOC Prompts & Chat Memory: Utilizing your chat memory can be essential to keep consistency in any roleplay, especially big open world ones such as this. Be sure to have a section in your chat memory with something like this, or anything similar:

[{User}'s Inventory]
1x Example
2x Example

[{User}'s Spells]
Spell Name
Spell Name

[Important Characters]
<Here, add in character sheets that a bot can provide through an OOC prompt. Separate each character with "---">

Here are some example OOC prompts that can help your experience with the bot:
⚪ (OOC: Pause the roleplay and tell me what spells {user} know.)
⚪ (OOC: Pause the roleplay and give me a short character sheet of <Monster Girl> to save for chat memory.)
⚪ (OOC: Pause the roleplay and tell me what is currently in {user}'s inventory.)
⚪ (OOC: Do not speak or act on the behalf of {user}.)
⚪ (OOC: That is not the link for the (insert character name)'s image. Give me the right one.)
Credit: @Ypo Hashimura

Let me know if you have any that has helped you in the roleplay!

Something amiss? Let me know in the comments, I'll get it updated as soon as possible!

1️⃣ A New Adventurer [Adventurer User]
Growing up, you always had this faint mark on your hand and never knew why. As you grew up, you were only given one hint; adventure towards Stonewall, a peaceful city where it's foundation was built to defend against monster girls. You take a carriage there, in search for answers.

2️⃣ A Royal Entrance [Noble User]
You lived as a noble, your family name means something. Then the strange mark appeared on your hand one day, raising many questions. After some research, everyone agreed that travelling to the monster girl dungeons is where you'll find your answer. Normal beginning, but you start with a lot more money.

3️⃣ Isekai Beginning [Any User]
The classic tale; something in your world ended your life. Now, you woke up to strangers that found you passed out in the middle of a field, now on your way to Stonewall to begin your new life. You may not have any gold on you, but it seems you're already making connections.

4️⃣ Overpowered Outsider [Any User]
The same as intro 3; your classic Isekai route but with a twist! You still don't have any gold on you... but you already know every spell!

If you have any ideas for more introductions, let me know and I can always add more!

🔁 Updates

• 04/11/2026: Made some edits with the bot's core and lorebook; making images appear more reliably. Also includes a few misc. bug fixes and missing links. Also made slight changes to the introduction; adding in macros. Included a blank introduction.

• 04/24/2026: Updated the Monster Girl Manual lorebook where now you can see the full images of the monster girls when you click the images in the lorebook. Included a new OOC comment.

• 06/17/2026: Removed the HP/MP up on level up, it was a fragment of an old system that didn't quite hit the mark. Also gave the Adventurer's Crest a new feature; Safe / Risk mode! Now the crest has two modes that will either turn off or on the automatic teleportation to safety feature in exchange for bonus EXP!

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It's finally here!
Yes, this is probably my biggest I have ever made; it's one that began as something small - but I kept adding more and more, refining more and more since this is a bot that I, myself will want to use from time to time. I've always been a fan of monster girls, so having another big scenario bot regarding them just felt right.
I am sorry for how quiet I have been lately here, a lot has happened. Friends getting married, bachelor parties to attend, dentist appointments to maul over... in short; life just happens. I'm just glad I'm able to finally bring this bot out for you all - I've done extensive testing and personal enjoyment on my test version of the bot and I have to say... I'm happy with what came out. I hope you all enjoy it as much as I did!

I want to keep this brief since I could have a giant list of people I want to be thankful for, they've been supportive, fun to be with, and just lovable people. Go check out their work!
Uminari, TimberTambre, Kalaydus, Zach108, rustylover, bland1, KornyPony, Diasonex, PinkGrimoire, bloodrevan, Melamemnon, Cyviel, Pepperfighter, The Bingler, Rocket499, sevenofsevens, Atsura, Sunzou, Ryou_Misaki, UmbraChi, aapathyy, Majestichmmm, Chaotic.Succubus, Duplex, DrongusBongus, LuvBytes, Huffles

I'm part of some amazing Discord communities, their links can be found on my profile page. I'll sometimes have extra images of my bots there—especially if requested!