Top 12 Open-Source Alternatives to Unity3D

Unity3D

Unity is the ultimate game development platform. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers.

Alternatives

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Product categories

3D Game Engine Game Development Game Engine 2D Game Engine Virtual Reality

Summary

The top open-source alternatives to Unity3D are Godot Engine, Defold Engine, and ct.js. 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.

Godot Engine Landing Page
1

Godot Engine

Feature-packed 2D and 3D open source game engine.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 480 social mentions
Defold Engine Landing Page
2

Defold Engine

Defold lets you quickly build high performing, cross-platform games together with your team.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 52 social mentions
ct.js Landing Page
3

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
4

LibGDX

Libgdx is a Java game development framework that provides a unified API that works across all...
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 7 social mentions
Unity Landing Page
5

Unity

The multiplatform game creation tools for everyone.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 209 social mentions
MonoGame Landing Page
6

MonoGame

MonoGame is an open source implementation of the Microsoft XNA 4 Framework.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 8 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 Development #Game Engine #3D Game Engine
Panda3D Landing Page
9

Panda3D

Panda3D is a video game development engine and rendering software. It is developed and maintained by the Carnegie Mellon University Entertainment Technology Center.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 2 social mentions
CryENGINE Landing Page
10

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
Armory3D Landing Page
11

Armory3D

Armory 3D is a free and open source game development software developed using Haxe and Kha and made to run inside Blender.
Pricing:
- Open Source
#Game Development #Game Engine #3D Game Engine 10 social mentions
GDevelop Landing Page
12

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 78 social mentions