AI NPC Backend for Game Developers

NPCs That Stay In Character

Build NPCs on the web. Integrate with the Unity SDK or REST API. Your players talk to lore-grounded characters who remember everything.

No credit card required
RPG
Player

...|

Game Context

Real-time state from your game

locationnearbyCharactersnpcMoodatmosphere
Relevant Lore

Retrieved from your documents

house_ashfordsilver_minescity_watchmarcus_ashford
Gruff the Barkeep

...

How It Works

From lore to live players in three steps.

Step 1

Build on the Web

Upload lore documents, define NPC personalities, configure backstories and relationships — all from the dashboard.

Step 2

Integrate the SDK

Drop the Unity package into your project or call the REST API from any engine. One component, one API call.

Step 3

Players Interact

Your players talk to AI NPCs that stay in character, draw from your world's lore, and remember every conversation.

Start Building

The Unity SDK is the fastest way to get started. Not using Unity? All platform features are available through the REST API.

Unity SDK

Recommended

Drop in the .unitypackage and add the LoreMindNPC component to any GameObject. The SDK handles conversation history, automatic context gathering from your scene, proximity sensing, location zones, voice input, and memory management.

REST API

Any Engine

Using Unreal, Godot, or a custom engine? Call POST /npc/interact directly from your game server. Lore grounding, long-term memory, context, and conversation history all work through the API.

Why LoreMind?

Production-ready AI infrastructure so you can focus on building great games.

Context-Aware NPCs
Smart

NPCs draw from your lore and react to situational context you pass from your game. Location, time, weather, player state, nearby characters.

Long-Term Memory
Persistent

NPCs remember who the player is and what they've discussed, across sessions. Memories are automatically extracted and consolidated.

Managed Security
Handled

No API keys in your build. We manage authentication, rate limiting, and abuse prevention so you don't have to.

Prepaid Credits
No Subs

Buy credits upfront when you need them. Never expires. No monthly fees. Volume discounts up to 40% off.

What LoreMind Is NOT

LoreMind NPCs are fully intelligent. They just stay in character.

Not a dialogue tree: NPCs respond dynamically to any player input
Not a generic chatbot: NPCs have identity, backstory, and relationships that shape every response
Not magic: good lore and thoughtful NPC configuration still matter

NPCs draw from your lore for world knowledge. When they don't know something, they deflect naturally, staying in character.

Build Complete Voice-Enabled NPCs

LoreMind handles the intelligence. Combine it with local speech recognition and text-to-speech for fully voice-interactive characters.

Local Speech-to-Text

Works out of the box with local STT models like Whisper. Speech recognition runs directly on the player's device with no cloud overhead or additional cost.

Add Text-to-Speech

Give your NPCs voices by integrating any TTS solution. Use cloud services like ElevenLabs, local models, or pre-recorded audio to bring characters to life.

Complex Relationships

Define NPC relationships, backstories, and personalities. Characters remember context, understand their place in your world, and respond authentically.

Simple, Prepaid Pricing

Buy credits upfront. Use them whenever. Never expires.

Optional auto-reload when balance gets low

10,000 Credits

$10

Est. 1,667-5,000 interactions

$1.00/1K credits

Save 20%

50,000 Credits

$40

Est. 8,334-25,001 interactions

$0.80/1K credits

Save 30%

200,000 Credits

$140

Est. 33,334-100,001 interactions

$0.70/1K credits

Save 40%

1,000,000 Credits

$600

Est. 166,667-500,000 interactions

$0.60/1K credits

Volume Plan

Built for studios shipping live games

  • Custom credit pricing
  • Priority support
  • Dedicated onboarding
Contact Us

Typically 2-5 credits per interaction. Costs vary based on lore, NPC complexity, and situational context.

Ready to bring your NPCs to life?

Upload your lore, define your NPCs, and integrate with the Unity SDK or REST API. Your players can be talking to intelligent NPCs today.