GameMaker

Unity

unity.com

Popular

Most widely used cross-platform game engine (C#), dominant in mobile, indie and XR development.

Unreal Engine

unrealengine.com

Popular

Epic's AAA-grade C++ engine with Nanite, Lumen and Blueprints; source available to registered users.

Godot

godotengine/godot

TrendingPopular

Free, MIT-licensed 2D/3D engine with GDScript and C#; the fastest-growing open-source engine.

Bevy

bevyengine/bevy

Rising

Data-driven Rust game engine built around an ergonomic ECS; pre-1.0 but growing quickly.

Roblox Studio

create.roblox.com

Popular

Roblox's engine and editor for building multiplayer experiences in Luau for the Roblox platform.

Defold

defold/defold

Free, lightweight 2D/3D engine with Lua scripting, tiny builds and strong web and mobile export.

Cocos Creator

cocos/cocos-engine

TypeScript 2D/3D engine and editor popular for mobile and web mini-games, especially in Asia.

Stride

stride3d/stride

Open-source C#/.NET 3D engine (formerly Xenko) with a full visual editor.

Flax Engine

FlaxEngine/FlaxEngine

C++/C# 3D engine with a modern editor and source access; a lighter Unreal/Unity alternative.