Category
AI game engines: what they are and who makes them
engines with a vendor-run ai assistant, free open-source 2d and 3d engines, code-first frameworks without an editor, commercial engines with a royalty or paid license: Unity, GDevelop, Godot through LÖVE.
Types of AI game engines
Engines with a vendor-run AI assistant
Unity and GDevelop describe AI tools inside the product and meter them with credits. Unity adds a free MCP server and a command line tool, while GDevelop aims its assistant at no-code builders. Check the credit allowance for your plan before you plan a long project around them.
Free open-source 2D and 3D engines
Godot, Defold and Stride are free and open source and have no revenue conditions. None names an AI feature on the pages we read, so assistants arrive through outside coding tools. They suit teams that value license freedom over bundled help.
Code-first frameworks without an editor
MonoGame, libGDX, Bevy and LÖVE are libraries you program against in C#, Java, Rust or Lua. They ask more of the developer and give more control. Solar2D belongs nearby as a Lua engine with a plugin directory, and none names an AI feature.
Commercial engines with a royalty or paid license
GameMaker charges a one-time $99.99 for commercial release and a subscription for consoles, and CRYENGINE takes a 5% royalty after the first $5K a year per project. These suit teams that budget a known cost for specific platform or rendering strengths.
Facts at a glance
| Tool | Publisher | Based in | Access |
|---|---|---|---|
| Unity | Unity Technologies SF | United States | Free tier + API |
| GDevelop | GDevelop Ltd | Not stated on the vendor pages | Free tier |
| Godot | Godot Foundation | Not stated on the vendor pages | Free tier + API |
| GameMaker | Opera Norway AS (GameMaker is part of Opera) | Norway | Free tier |
| Defold | Stiftelsen Defold Foundation | Sweden | Free tier + API |
| CRYENGINE | Crytek GmbH | Germany | Free tier |
| Stride | The .NET Foundation and contributors | Not stated on the vendor pages | Free tier |
| Bevy | Not stated on the vendor pages (community project) | Not stated on the vendor pages | Free tier |
| MonoGame | MonoGame Foundation, Inc. | Not stated on the vendor pages | Free tier |
| libGDX | Bugbyte Ltd (community-maintained project) | Not stated on the vendor pages | Free tier |
| Solar2D | Not stated on the vendor pages (led by Vlad Shcherban per the homepage) | Not stated on the vendor pages | Free tier |
| LÖVE | LÖVE development team (not stated as a company) | Not stated on the vendor pages | Free tier |
