In Level & terrain generation, HunyuanWorld 1.0 (Tencent) ranks #2 and Ludus AI ranks #3. No independent quality tests found. Ranked on game-dev fit: commercial use restricted; no engine integration stated.
Commercial use: HunyuanWorld 1.0 (Tencent): restricted (see notes) terms. Ludus AI: not stated by vendor terms.
Free plan: HunyuanWorld 1.0 (Tencent): free plan (Free open weights (your own GPU costs)) pricing. Ludus AI: free trial or credits only (14-day Pro trial; free account has no credits) pricing.
API and MCP: both: API not stated by vendor, MCP not stated by vendor.
Engine integrations stated by the vendor: HunyuanWorld 1.0 (Tencent): none stated (standard file export). Ludus AI: Unreal.
Unreal teams wanting an in-editor agent for Blueprints, C++ and levels
What it does
Open-weights model that generates explorable 360° 3D worlds from text or an image, with mesh export for standard graphics pipelines. Tencent has since released newer HY-World versions under separate repos.
AI toolkit that runs inside the Unreal Engine editor: an agent that understands your project's Blueprints, C++, assets and levels and can answer questions and make edits.
Verdict
For self-hosting 3D world generation with mesh export; the licence excludes the EU, UK and South Korea, and large products need Tencent's approval.
For Unreal devs who want a project-aware assistant in the editor; it has no free credits beyond a 14-day trial, and its output licence is unverified.
Tasks●
Level & terrain generation
Coding assistants, Level & terrain generation
Engines●
Any (standard file export / engine-agnostic)
Unreal
Free plan●
Free plan Free open weights (your own GPU costs)
Free trial or credits only 14-day Pro trial; free account has no credits
Pricing
Free to download and self-host (your own GPU/compute costs apply). A quantised "lite" version is listed for consumer GPUs such as the RTX 4090. source
14-day Pro trial. Pro $25/month, Studio $80/month, Ultimate $180/month (plus VAT; yearly billing discounted). Free account has no credits. source
Restricted (see notes) Tencent HunyuanWorld-1.0 Community License: the licensed territory excludes the EU, UK and South Korea; use of the works or outputs outside that territory is unauthorized; products with over 1 million monthly active users must request a license from Tencent. source
Commercial use: not stated by vendor Ownership/commercial terms for generated output: unverified. source
Revenue share / caps●
Products with over 1 million monthly active users must request a licence from Tencent.
Not stated by vendor
API
Not stated by vendor. Not checked
Not stated by vendor. No public API found
MCP server
Not stated by vendor. Not checked
Not stated by vendor. Ludus says it can connect to IDEs via MCP; setup details not public source
Rows marked ● differ between the two tools. Licence badges: green = commercial use allowed (including any free plan or trial), amber = paid plans only, restricted, or allowed but with no free plan, red = not allowed, grey = not stated by vendor or not applicable. Read the vendor's current terms before you ship.
