Unity
Cross-platform game engine for 2D, 3D, AR, and VR.
Unity is the most widely used real-time development platform, supporting 20+ deployment targets from mobile to console to XR. Its asset store, tutorial library, and community make it the easiest engine to find help for.
Best for indie developers who want to ship games on multiple platforms with the largest ecosystem of assets and learning resources.
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Related Game Development tools
All alternatives →Free and open-source game engine for 2D and 3D.
Best for indie developers who want a capable, royalty-free engine with full source access and no vendor lock-in.
AAA-grade game engine with photorealistic graphics.
Best for developers targeting high-fidelity 3D experiences — games, architectural viz, or film production.
Beginner-friendly 2D game engine used in iconic indie games.
Best for beginners and indie developers focused on 2D games who want fast iteration and a proven track record.