4 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 |
|---|---|---|---|---|
 Layer | Free plan | Commercial use allowed | Available | Official MCP server |
 Luma Dream Machine | Paid only | Commercial use allowed | Available | Official MCP server |
 Marble (World Labs) | Free plan | Restricted (see notes) | Available | Unverified |
 Runway | Free trial or credits only | Commercial use allowed | Available | Official MCP server |
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.
Video and image generation with Luma's own models and third-party models, usable for trailer shots and marketing clips.
Verdict: For marketing video clips on a paid plan; commercial use is listed from the $30/month Plus tier, with no free plan.
Generates persistent 3D worlds from text, images, video, 360° panoramas or blocked-out 3D layouts. Exports Gaussian splats and GLB meshes, and records camera flythrough videos.
Verdict: For blocking out explorable environments or flythrough shots; exports go to Unity/Unreal via Gaussian-splat plugins, and commercial rights are listed on Pro.
AI video, image and audio generation (Runway Gen-4.5 plus third-party models), usable for trailer shots, teasers and marketing material.
Verdict: For generating trailer and teaser shots; the terms don't restrict commercial use of outputs, but Runway may train on your inputs and outputs.