Launched in 2021
Pricing
Free trial
Free version

Inworld AI provides a character engine designed for game developers and interactive media creators who want to build AI-driven non-player characters (NPCs) and virtual agents. The platform allows developers to define character personalities, goals, memories, and knowledge bases, which then drive real-time, contextually aware dialogue and behavior. Characters can respond dynamically to player actions and in-game events rather than relying on pre-scripted dialogue trees. Inworld integrates with major game engines such as Unreal Engine and Unity, and offers SDKs and APIs for custom integrations. The platform is aimed at studios of varying sizes, from indie developers to large AAA game studios, and also supports use cases in virtual reality, simulation, and training environments. Inworld's technology combines large language models with additional layers for safety, performance, and character consistency, making it suitable for production game deployments where reliability and content moderation are important considerations.

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Target audience and deployment

  • Startup
  • SMB
  • Mid-market
  • Enterprise
  • Cloud
  • API

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Pricing

Pricing details:
Free trial
Free version
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Key features

AI character engineDynamic NPC dialogue generationCharacter personality and goals configurationLong-term and short-term character memoryEmotions and sentiment systemKnowledge base per characterUnreal Engine SDKUnity SDKREST API and WebSocket APIContent safety and moderation layerCharacter Studio (web-based authoring tool)Multi-character scene support

Use cases

  • Build dynamic NPC dialogue systems
  • Design AI-driven character behavior
  • Integrate AI characters into game engines
  • Create interactive training and simulation agents
  • Prototype conversational game experiences

Best for

  • Game developers who need to create believable, dynamically conversational NPCs without scripting every dialogue branch
  • AAA and indie studios who need to integrate AI character behavior into Unreal Engine or Unity pipelines
  • XR and simulation teams who need responsive AI agents for training or immersive virtual environments
  • Technical directors who need a production-ready character AI engine with safety and content moderation controls

Integrations

Developer

Unreal Engine, Unity, WebSocket API, REST API