Cross-platform game engine for 2D, 3D, AR, and VR.
Unity is the most widely used real-time game development engine, supporting deployment to over 20 platforms including iOS, Android, Windows, Mac, PlayStation, Xbox, Nintendo Switch, and XR headsets, and available on Windows, Mac, and Linux. Its Component-Entity-System architecture, C# scripting, and extensive Asset Store make it accessible to beginners while remaining powerful enough for shipped commercial titles. The Unity Editor includes a physics engine, animation system, UI toolkit, profiler, and an AI navigation system. Unity Personal is free for developers earning under $100,000 per year. The engine's dominant market share means the largest community, tutorial libraries, and third-party tooling of any game engine.
Best for
Best for indie developers who want to ship games on multiple platforms with the largest ecosystem of assets and learning resources.
Related Game Development tools
All alternatives →Free and open-source game engine for 2D and 3D.
Godot Engine is a free and fully open-source game development engine released under the MIT licence, available for Windows, Mac, and Linux with no royalties, runtime fees, or seat licences.
AAA-grade game engine with photorealistic graphics.
Unreal Engine is a professional-grade, free-to-use game development engine by Epic Games, available on Windows, Mac, and Linux, used in AAA games, architectural visualisation, film production, and live events.
Beginner-friendly 2D game engine used in iconic indie games.
GameMaker is a 2D-focused game development engine available for Windows and Mac, used to create some of the most celebrated indie games including Undertale, Hotline Miami, Spelunky, and Hyper Light Drifter.