10 tools, in alphabetical order (this isn't a ranking). Check each tool's commercial-use notes before you ship assets in a game.
| Tool | Free plan | Commercial use | API | MCP |
|---|---|---|---|---|
| Hunyuan3D 2.1 (Tencent) | Free plan | Restricted (see notes) | Available | Official MCP server |
 Hyper3D Rodin | Free plan | Commercial use unverified | Available | Official MCP server |
 Layer | Free plan | Commercial use allowed | Available | Official MCP server |
| Leonardo.Ai | Free plan | Commercial use allowed | Available | Official MCP server |
 Ludo.ai | Free plan | Commercial use allowed | Available | Official MCP server |
 Meshy | Free plan | Commercial use allowed | Available | Official MCP server |
 Scenario | Free plan | Commercial on paid plans only | Available | Official MCP server |
 Skybox AI (Blockade Labs) | Unverified | Commercial use unverified | Available | In preview |
 Tripo AI | Free plan | Commercial on paid plans only | Available | Official MCP server |
 Unity AI | Free plan | Commercial use unverified | Not applicable | Official MCP server |
Open-weights image-to-3D model with PBR material generation that you can run on your own hardware.
Verdict: For devs who can self-host a 3D model generator at no licence cost; the licence excludes the EU, UK and South Korea, and products over 1 million monthly users must request a licence.
Rodin generates 3D models from text or images, with options like high-poly quad meshes; the platform also lists HDRI and texture generators.
Verdict: For high-detail 3D generation; commercial rights on the Free and Creator tiers are unverified, so check its terms before you ship.
Generative content platform aimed at game studios: style-trained models, concept art, marketing creatives and asset variations with team workflows.
Verdict: For studios that want style-trained generation with no per-seat fees; the pricing page lists a commercial licence for all users.
General image and video generation platform with trainable custom models; usable for concept art, item icons and texture ideas.
Verdict: For general concept art and icon ideas; free-tier output can be used commercially but is public and Leonardo holds rights to it, while paid plans give you ownership.
Game ideation and asset tool: concept generation, sprites and sprite sheets, textures, plus a Unity editor plugin and API.
Verdict: For Unity devs who want ideation and 2D assets in one place; its FAQ says you own what you generate, but free-plan sprite sheets are watermarked.
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.
Verdict: 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.
Production-focused generative platform for game art: train custom style models on your own assets, generate images, textures, 3D meshes, video and audio. API-first with Unity/Unreal integration.
Verdict: For studios that want custom style models trained on their own art; commercial use needs a paid plan (free output is personal/evaluation only).
Generates 360° panoramic skyboxes and environments (up to 16K and HDRI on higher tiers), with an API for in-app generation.
Verdict: For 360° skyboxes and environment backdrops; the terms say you own your assets, but commercial terms below the Business tier are unverified.
Text/image/multi-view to 3D model generation with retopology, segmentation and up to 4K/8K texture generation. DCC bridge lists Blender, Unity, Unreal, Godot and others.
Verdict: For 3D models with retopology and engine bridges; the free plan is non-commercial, so shipping assets requires a paid plan.
AI built into the Unity Editor: an Assistant for project questions and code, plus generators for images, textures, materials, sounds, 3D models and animations, metered in Unity Credits.
Verdict: For Unity users who want AI inside the editor, with monthly credits included on Personal, Pro and Enterprise plans; AI-output licence terms are unverified.