Which AI tools help with game development?

Use the AI that plugs into your engine, plus a general coding assistant. In Unity, a free official plugin lets the coding agent you already use, such as Claude Code or GitHub Copilot, control the editor, and Unity's own in-editor assistant runs on paid credits. Godot is a free, open-source engine for 2D and 3D games, and any coding assistant will write and explain its scripts. Roblox Studio's built-in Assistant answers questions, writes and explains code, and generates materials, 3D meshes and procedural models inside Studio. For 3D assets, Meshy turns text or an image into a model: free for 100 credits a month under a CC BY 4.0 licence that lets you sell with credit to Meshy, and Pro at ₹1,699 a month. Treat generated art as a placeholder until you have checked its licence and how it looks next to your own. Rule: your engine's own AI first, a coding agent for scripts, Meshy for assets.