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Unity has the biggest pile of AI add-ons, so this is the longest engine list. Some live inside the editor, some just export files Unity reads happily.
24 tools · prices change, so check before you buy
Text- and image-to-3D models with textures, ready for game engines.
Fast image/text-to-3D generation with auto-rigging.
Parametric, game-ready 3D props generated from templates and prompts.
Generate 360° skyboxes and environments from prompts.
Physics-assisted keyframe animation with AI auto-posing.
Markerless motion capture: turn video into 3D animation.
Mocap suits plus free AI video-to-animation tool (Rokoko Vision).
Markerless mocap from phone or multi-camera video.
Free auto-rigging and a large library of character animations from Adobe.
AI code editor; works well for C#, GDScript, C++ and web games.
AI pair programmer inside VS Code, Visual Studio and Rider.
Terminal-based coding agent that can edit whole game projects.
Unity's built-in AI assistant and generators inside the editor.
AI assistant that works directly inside the Unity Editor.
Open-source MCP bridge letting AI agents control the Unity Editor.
AI-assisted environment and level set-dressing for 3D worlds.
Conversational AI NPCs with voice, actions and engine plugins.
Runtime AI for characters and voice in games.
Interactive story and branching dialogue platform with AI characters.
Localization management with AI translation and game-string workflows.
Spreadsheet-style localization CMS built for games.
AI bots that automatically playtest and QA your game.
Automated game testing framework for Unity and Unreal.
Free player analytics SDK for understanding player behavior.