4 tools whose vendors document an official Roblox Studio plugin, integration or export target, in alphabetical order (this isn't a ranking). Most other tools export standard files (PNG, FBX, GLB, WAV and so on) that work in any engine: see all tools. Check each tool's commercial-use notes before you ship.
| Tool | Main task | Free plan | Commercial use |
|---|---|---|---|
 Convai | NPC & AI characters | Free plan | Commercial use allowed |
 DeepMotion Animate 3D | Rigging, animation & mocap | Free plan | Commercial on paid plans only |
 Meshy | 3D model generation | Free plan | Commercial use allowed |
 Sloyd | 3D model generation | Free plan | Commercial on paid plans only |
Other engines:UnityUnrealGodotBlender
Conversational AI characters for games and virtual worlds: NPCs with voice, knowledge and actions.
For conversational NPCs with a free tier to prototype on; its terms give you ownership of AI-generated content.
Markerless AI motion capture: turns ordinary video into 3D character animation; sister product SayMotion does text-to-motion.
For turning reference video into 3D animation cheaply; the free Freemium tier is non-commercial only.
Text-to-3D and image-to-3D model generation with AI texturing; paid plans add animation with 600+ motions. DCC bridge listed for Roblox, Blender, Godot, Unity and Unreal.
For quick text- or image-to-3D props with Godot/Unity/Unreal bridges; free output is CC BY 4.0, so you must credit Meshy unless you pay.
Template-based and AI 3D generator for game-ready props and objects, with browser editor and plugins for Unity, Unreal and Blender on paid plans.
For game-ready props from editable templates with Unity/Unreal plugins; the free plan is personal-use only.