AI tools for Unity

Best for An agent that builds, launches and tests its own work

Works in both Blueprints and C++, and can launch the game to check its changes instead of stopping at code. Since absorbing Coplay it covers Unity too. One catch: the unlimited Auto Mode requires you to allow training on your chats.

Price

Indie $10/mo billed yearly ($120/yr, 50% off the $20 list price). 2-week free trial

Works with

Unreal 5.4–5.8, Unity 2022.3+

Best for NPCs that talk back with voice, memory and perception

A hosted character platform with an Unreal plugin, so you attach conversation to existing NPCs instead of building an LLM pipeline. Every generated line costs money per player, and Steam requires you to describe your guardrails for live AI content.

Price

Free developer tier, usage-based paid plans

Works with

Unreal, Unity, web

Best for Props and characters from text or an image, rigged if needed

Text or image to 3D with texturing, auto-rigging and an animation library. Its free tier is unusually usable for a shipping game: assets are CC BY 4.0, so commercial use is allowed if you credit Meshy. Paid plans make assets fully yours.

Price

Free 100 credits/mo (CC BY 4.0). Pro $20/mo

Works with

Unreal, Unity, Godot, Blender, Roblox

Best for High volume of game-ready meshes with part segmentation

Fast generation with smart segmentation and retopology, plus an Unreal bridge. Watch the license: free-tier models are public and non-commercial, so anything you plan to ship needs a paid plan.

Price

Free 200 credits (non-commercial). Pro $20/mo billed yearly

Works with

Unreal, Unity, Godot, Blender, Maya

Best for Deep C++ work across a large codebase

A general coding agent that runs in your terminal or IDE. On its own it knows C++, not your editor state; paired with Epic's official skills plugin above, it can also drive the running editor.

Price

Paid plans, see site

Works with

Any (official Unreal plugin available)

Best for Unreal C++ inside an AI code editor

An AI-first code editor that many Unreal developers use for C++. It works with community and official Unreal MCP servers, so it can reach the editor too, but out of the box it only sees the code you open.

Price

Free tier and paid plans, see site

Works with

Any

Best for Physics-correct keyframe animation with AI autoposing

AI posing and physics tools for hand-keyed animation. The free version is non-commercial and exports only its own format, so you need Indie to get FBX into Unreal. Yearly plans convert to a perpetual license.

Price

Free (non-commercial). Indie $8/mo yearly or $19 monthly, under $100k revenue

Works with

Exports FBX, GLTF, USD

Best for Keeping generated art consistent with your game's style

Train a custom model on 10 to 30 of your own images and generate new assets in that style. Training needs the Pro plan. Paid plans include a commercial license; free outputs are for personal use only.

Price

Starter $15/mo. Pro $45/mo for custom training

Works with

Exports PNG, GLB, FBX; API

Best for Voice lines, sound effects and music in one place

Text to speech, voice design, sound effects and music under one account. The free plan has no commercial license, so a shipped game needs at least Starter.

Price

Free (no commercial use). Starter from $6/mo

Works with

Web, API

Best for Soundtrack drafts and stems

Full songs from a prompt, with stem separation on paid plans. Free songs come with no commercial rights and no downloads, and Suno's terms list further limits on commercial use, so read them before shipping a track.

Price

Free (no commercial rights). Pro $8/mo billed yearly

Works with

Web

Best for Cutting devlog videos into vertical shorts

Finds the best moments in a long video, reframes them for vertical, and adds captions. It has a gameplay layout. Free clips are watermarked and expire after three days.

Price

Free 60 credits/mo (watermark). Starter $15/mo

Works with

YouTube, Twitch, uploads

Best for Auto-clipping kills and big moments from stream VODs

Scans your Twitch, Kick or YouTube VOD after the stream and clips game moments it recognizes. It is tuned for action games and less accurate on slower genres. There is a free preview but no free plan.

Price

About $24.99/mo (check at checkout)

Works with

Twitch, Kick, YouTube

Best for AI agents that play your build from plain-English test plans

Agents watch the screen and use keyboard, mouse or touch like a player, so no engine integration is needed. Tests run on real PC, iOS and Android devices.

Price

See pricing page

Works with

PC, iOS, Android

Best for Automated QA bots and stand-in players for multiplayer

Upload a build and its bots explore, find crashes and run tests you describe in plain language. modl:play adds human-like bots to fill matches. Pricing is by quote, so it suits funded teams more than solo devs.

Price

Contact for pricing

Works with

PC, mobile, PlayStation