Convai Alternative for Unity and Indie Game Developers

Convai is one of the best-known platforms for conversational 3D characters. It has Unity and Unreal plugins, lip sync, vision, long-term memory and a large voice library, and it serves training, XR and brand-avatar projects as well as games.

So why do indie and mid-size game teams look for a Convai alternative? Usually for one of three reasons: how usage is counted, how many players can talk at once, and where the AI runs.

How Convai counts usage

From Convai's own FAQ (checked October 2026):

• Every character response counts as one interaction, and each plan has a monthly interaction quota.
• The Indie Dev plan includes 3,000 interactions a month, with sub-limits on flagship LLMs and HQ voices.
• Concurrency is set per API key. With a limit of 1, only one user can talk to any NPC at a time.
• Unused quota does not roll over.

For a demo or a training simulation, this is fine. For a game where players chat freely with several NPCs, a busy evening can use up a monthly quota, and a concurrency limit shows up as players waiting for a reply.

Where the AI runs

Convai runs in the cloud. Its on-premises deployment images are not publicly available; you contact sales for them. A community request for an offline or local-LLM mode sits on its feature-request list.

Convai vs Neocortex at a glance

Why game teams choose Neocortex

Behaviour you can see and control. Every Neocortex character is a graph you build visually. Personality, starting emotion, knowledge, world context, intents and actions are explicit nodes, so a designer can see why a character behaves the way it does and change it without touching code. Conversation Flows keep a character on track through a story beat and tell your game when a checkpoint is reached.

Made for gameplay, not just talking heads. Characters return actions your game can execute, perceive tagged objects in the scene, and tag every line with an emotion you can drive animation from.

Testing is free. Talking to your characters in the browser editor does not use your credits, on every plan, including the free one.

Local when you need it. Prototype with open models such as Llama, Gemma, Qwen and Mistral running on your own machine through Ollama in Unity. For studios with privacy or compliance needs, the whole platform can run on your own infrastructure.

When Convai is the better fit

If you need webcam-based vision, a ready-made avatar studio, or a no-code tool for building training simulations, Convai covers that well. If you are building a game and want designers to control character behaviour without paying per response, Neocortex is built for you.

Try it

You can test a character in minutes and have it in your game the same day.

Competitor details were last checked in October 2026. Plans change often, so check Convai's pricing page for current limits.