Medieval Harem City

Medieval Harem City is a text-based adult sandbox RPG developed by MHC-Project for Windows. Staying true to its direct title, the game combines classic town exploration with advanced LLM-driven roleplay systems. Players step into the shoes of a male protagonist navigating a medieval settlement, interacting with various non-player characters to build relationships, increase affinity levels, and unlock increasingly intimate scenarios accompanied by AI-generated CGs.

Powered entirely by AI language models, Medieval Harem City separates conversation handling from background tracking. While the LLM drives open-ended dialogue and roleplay flexibility, the internal backend actively logs NPC data, memory retention, relationship states, and progression mechanics. The v0.3 update introduces flexible startup configurations via an LLM.html startup screen, letting users configure their preferred backend before launching the game.

Gameplay and Features

The core gameplay loop centers on freeform text roleplay, town navigation, and social progression. As players talk to town residents, their choices and interaction histories directly influence relationship metrics. Higher affinity ratings unlock new interaction tiers, expanding the scope of the adult content sandbox.

• LLM-driven conversations supporting KoboldCpp, Gemini API, and local Wllama GGUF models
• Startup selection screen allowing users to choose their LLM provider before launching
• Town exploration system to locate and interact with various NPCs
• Affinity and relationship progression that unlocks advanced interactions
• Fully moddable framework designed for custom backend integrations

Story and Setting

Set within a medieval township, Medieval Harem City puts narrative freedom in the hands of the player. Rather than following a rigid linear visual novel structure, the game relies on its underlying AI architecture to generate organic conversations. Players dictate their own pace, building a sprawling harem through persistent social interactions, memory-tracked relationships, and spontaneous roleplay scenarios.

What Makes Medieval Harem City Worth Playing

Medieval Harem City stands out from conventional text-based adult games by offering true LLM flexibility. Players are not locked into a single cloud API or a mandatory local setup. Version 0.3 adds native support for local Wllama and GGUF models, allowing privacy-conscious users to run a small bundled or external model offline. MHC-Project distributes the game completely free of charge, making it an accessible sandbox for fans of AI-generated adult content and open-ended text RPGs.

Tips for New Players

• Run Start-mhc.bat to automatically start the local web server and bypass modern Chrome browser file access restrictions at http://127.0.0.1:3000.
• If using the offline option, select Local AI, load a GGUF model (such as the bundled ~2GB baby model), run the connection test, and wait for inference to succeed before clicking Launch Game.
• For higher-quality narration and complex roleplay, connect via KoboldCpp (default port 127.0.0.1:5001 running models like Qwen 3.6) or input your Google AI Studio API key for Gemini.