ElevenLabs Agents for games
Voiced NPCs inside your engine
ElevenLabs Agents is a superb voice pipeline for web, mobile and phone. Games need more: an engine SDK, characters that act, and costs that do not grow with every minute of play.
- Free plan
- No credit card
- Unity, Unreal, Godot and Web API
4
ways to integrate
Unity, Unreal, Godot, Web API
20+
languages
set per character
10 s
to clone a voice
or design one from text
€0
to start
free plan and editor testing
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The short answer
ElevenLabs Agents or Neocortex: which fits your game?
Side by side
ElevenLabs Agents vs Neocortex: feature comparison
The facts that matter when you put AI characters in a game.
| Compared on | ElevenLabs Agents |  Neocortex |
|---|---|---|
| Built for | Voice agents for web, mobile and phone | AI characters for games |
| Unity | No SDK; write your own client | Unity SDK with voice samples |
| Other engines | Via WebSocket | Unreal, Godot (beta), Web API |
| Character design | Prompt plus workflow builder | Visual node editor: personality, emotion, knowledge, intents, actions |
| Gameplay hooks | Generic tools | Actions, interactable objects, per-line emotions |
| Pricing | Per minute, plus LLM costs | Free plan; paid plans from €9/month with monthly credits |
Built for
ElevenLabs Agents
Voice agents for web, mobile and phone
Neocortex
AI characters for games
Unity
ElevenLabs Agents
No SDK; write your own client
Neocortex
Unity SDK with voice samples
Other engines
ElevenLabs Agents
Via WebSocket
Neocortex
Unreal, Godot (beta), Web API
Character design
ElevenLabs Agents
Prompt plus workflow builder
Neocortex
Visual node editor: personality, emotion, knowledge, intents, actions
Gameplay hooks
ElevenLabs Agents
Generic tools
Neocortex
Actions, interactable objects, per-line emotions
Pricing
ElevenLabs Agents
Per minute, plus LLM costs
Neocortex
Free plan; paid plans from €9/month with monthly credits
Competitor details checked against their own docs, pricing pages or public reporting in October 2026.
Fair is fair
What ElevenLabs Agents does well
ElevenLabs sets the bar for AI voice quality, and its Agents platform bundles speech recognition, your choice of LLM, TTS and turn-taking into one managed pipeline. For voice assistants outside games, it is one of the best options available.
Why teams switch
Why game teams choose Neocortex over ElevenLabs Agents
Engine SDK included
Microphone, streaming and playback handled, including Unity WebGL.
Clone or design voices
Give every character a unique voice from a short sample or a description.
Characters, not agents
Personality, knowledge, emotion and actions designed visually.
Gameplay hooks
Actions and interactables connect what characters say to what they do.
Predictable cost
Monthly credits instead of per-minute billing plus LLM costs.
Free testing
Hear your characters in the browser without spending credits.
How it works
Characters you design, not prompts you babysit
- Personality, emotion, knowledge and world are nodes you connect, not prompts you rewrite.
- Intents and actions turn what a player says into something your game does.
- Test every character in the browser for free before it reaches your engine.
What Our Customers Say
Discover what creators are saying about building with Neocortex.
FAQ
ElevenLabs Agents alternative: common questions
Want the long version? Read the in-depth ElevenLabs Agents comparison.
Does ElevenLabs Agents have a Unity SDK?
ElevenLabs lists SDKs for Python, JavaScript, React, React Native, Swift and Kotlin, plus a WebSocket API. No Unity SDK is listed.
How is ElevenLabs Agents priced?
ElevenLabs bills Agents conversations per minute, with LLM usage billed on top at the provider's rate.
Can Neocortex clone voices?
Yes. Clone a voice from a recording of ten seconds or more that you have the rights to, or design one from a text description.
Does Neocortex voice work in WebGL?
Yes. The Neocortex Unity SDK includes a WebGL template that brings browser microphone input to Unity WebGL builds.
Voice characters with a Unity SDK
Free plan, no credit card. Build a character in the browser and talk to it in minutes.
More comparisons
All comparisonsInworld AI alternative
Inworld moved its focus to voice and inference for consumer apps and retired Character Studio. Neocortex keeps character design visual, game-first and in your engine.
Convai alternative
Convai counts every character reply against a monthly quota, with concurrency set per API key. Neocortex gives game teams monthly credits, free editor testing and characters designers control.
NVIDIA ACE alternative
NVIDIA ACE is a powerful on-device toolkit for Unreal Engine 5 and RTX GPUs. If you build in Unity, ship to mobile or the web, or lack a C++ team, Neocortex gets you a talking character today.
Charisma.ai alternative
Charisma.ai's homepage now leads with online training and campaigns. Neocortex is focused on characters players talk to, fight beside and trade with.
Player2 alternative
With Player2, every player signs in to Player2 and spends their own credits, and NPCs stop answering when those run out. Neocortex keeps your players inside your game.
Hume EVI alternative
Hume's documentation says its EVI and TTS APIs are being sunset on November 13, 2026, with account data deleted afterwards. Neocortex gives your characters a new home with voice in and out.
Replica Studios alternative
Replica Studios closed on June 30, 2025, and its API went offline. Neocortex gives you character voices again, plus NPCs that listen and answer.
EGO AI alternative
EGO AI has moved from an AI game engine to character.world and now yōkai, a consumer voice agent, with no public SDK or API. Neocortex puts AI characters in your Unity, Unreal or Godot game today.