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Player2 offers a free AI API for developers, paid for by players with Player2 accounts and credits. If you want full control of your game's AI and player experience, compare it with Neocortex.

Player2 Alternative for Unity - AI NPCs Without Player Accounts

ComparisonAI NPCUnity

Player2, from Elefant AI, made a splash with a simple offer: AI NPCs that cost the developer nothing. For game jams, mods and free indie projects, that is a genuinely attractive deal.

The trade-off is in how it is paid for, and for many commercial games that trade-off is a deal-breaker.

How Player2 works

From Player2's API spec and launch posts (checked October 2026):

  • Developers pay nothing. Players pay instead.
  • Every player needs a Player2 account. They sign in through the Player2 app, OAuth or a device code.
  • Players spend credits ("joules"). When a player runs out, the API returns an error and your NPC stops answering.
  • Premium features depend on the player's tier. Some voices require a Player2 Patron subscription.
  • Revenue share. Player2 earns from subscriptions and ads and shares part of it with qualifying games.
  • Integrations for Unity, Godot and Defold, all calling Player2's cloud.

The catch for commercial games

When your NPCs depend on a third-party account and wallet, part of your game's experience is outside your control:

  • A new player has to sign up for another service before your characters can talk.
  • A player who runs out of credits gets silent NPCs in the middle of a session.
  • You do not choose the models, the prices players pay, or the limits.

For a jam game, none of that matters. For a game you sell on Steam or ship to a client, it usually does.

Player2 vs Neocortex at a glance

Player2Neocortex
Who paysPlayers, through Player2 accounts and creditsYou, through a predictable monthly plan
Player sign-upRequiredNot required
Character designCodeVisual node editor
EnginesUnity, Godot, DefoldUnity, Unreal, Godot (beta), Web API
VoiceTTS and STT, some voices need a player subscriptionStreaming TTS and STT, voice cloning and design for every character
Local AINot documentedLocal LLMs in Unity via Ollama, self-hosted deployment for studios

Why commercial teams choose Neocortex

You own the player experience. Players open your game and talk to your characters. No extra accounts, no third-party wallets, no paywalled voices.

You control cost. Plans include monthly credits, and you can meter usage per player inside your game with the SDK's usage tools.

Designers own the characters. Personality, emotion, knowledge, intents and actions live in a visual graph you can test for free in the browser.

Local when you need it. Prototype with open models through Ollama in Unity, and run the platform on your own infrastructure when a project demands it.

When Player2 is the right call

For a game jam, a free hobby project or a mod where you want zero AI cost and your players are happy to sign in, Player2 is a great option. When you are shipping a commercial game, Neocortex keeps the experience and the economics in your hands.

Competitor details were last checked in October 2026.

Written by

Sercan Altundas

Date

Oct 17, 2026

Read time

3 min