Top 12 Open-Source Alternatives to Unreal Engine

Product categories

2D Game Engine 3D Game Engine Developer Tools Game Development Game Engine IDE Text Editors Virtual Reality Visual Novel Engine

Summary

The top open-source alternatives to Unreal Engine are Unity, Godot Engine, and GDevelop. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Unity Landing Page
1

Unity

The multiplatform game creation tools for everyone.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 197 social mentions
Godot Engine Landing Page
2

Godot Engine

Feature-packed 2D and 3D open source game engine.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 446 social mentions
GDevelop Landing Page
3

GDevelop

GDevelop is an open-source game making software designed to be used by everyone.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 75 social mentions
CryENGINE Landing Page
4

CryENGINE

The most powerful game development platform is now available to everyone. Full engine source code.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine
Stencyl Landing Page
5

Stencyl

Make iOS (iPhone/iPad), Android, Flash, Windows & Mac games without code using Stencyl.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 4 social mentions
PlayCanvas Landing Page
6

PlayCanvas

PlayCanvas is an open-source game engine built on WebGL and WebVR.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 29 social mentions
Orx Landing Page
7

Orx

Orx - a portable open source game engine
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine
Cocos Creator Landing Page
8

Cocos Creator

Cocos Creator is more than a efficient, lightweight, free, open-source, cross-platform graphics engine: it's also a platform to create 3D content in real time.
Pricing:
- Open Source
#Game Engine #Game Development #3D Game Engine
MonoGame Landing Page
9

MonoGame

MonoGame is an open source implementation of the Microsoft XNA 4 Framework.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 2 social mentions
RenPy Landing Page
10

RenPy

Ren'Py is a free and cross-platform visual novel engine that helps you use words, pictures, and...
Pricing:
- Open Source
#Visual Novel Engine #IDE #Text Editors 16 social mentions
ct.js Landing Page
11

ct.js

ct.js is a 2D game editor (desktop app) based on web technologies.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 3 social mentions
LibGDX Landing Page
12

LibGDX

Libgdx is a Java game development framework that provides a unified API that works across all...
Pricing:
- Open Source
#Game Engine #Game Development #3D Game Engine 6 social mentions