NPC & Dialogue
Which AI NPC engines run in your game?
Talking characters, voice, and dialogue runtimes — Inworld, Convai, Charisma, NVIDIA ACE — with SDKs, concurrency and commercial terms.
- Tools
- 4
- Features
- 10
- Verified
- 26
- Unknown
- 14
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| Engine | Free tier | Commercial license | API | Unity SDK | Unreal SDK | Godot SDK | Blender plugin | Engine export / embed | In-game runtime | MCP support |
|---|---|---|---|---|---|---|---|---|---|---|
| Inworld Inworld AI · On-demand $0; Creator $25/mo | Yes | Yes | Yes | Unknown | Unknown | Unknown | No | Yes | Yes | Unknown |
| Convai Convai · Free; Indie $29/mo | Yes | Yes | Yes | Unknown | Unknown | Unknown | No | Yes | Yes | Unknown |
| Charisma Charisma AI · Pro ~$5 / 50k credits | Partial | Yes | Yes | Yes | Yes | Unknown | No | Yes | Yes | Unknown |
| NVIDIA ACE NVIDIA · Free prototype; AI Enterprise for production | Partial | Partial | Yes | Unknown | Partial | Unknown | Unknown | Yes | Yes | Unknown |
Every cell links to its source when verified. Hover for the note and checked date. Last data update: 2026-11-04.
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