Urho3D vs AppGameKit 2.0

The entire engine is open source and makes use of other open source libraries. Source code is licensed under MIT and available on GitHub.

The documentation for Urho3D can be split in two parts: auto-generated from class references and documentation written to cover the various aspects, features and systems of the engine. The written documentation is pretty good. It covers most of the aspects of the engine in clear and understandable English.

There are a lot of sample projects included with the engine for both C++ and Angelscript. They are mostly very simple applications built to demonstrate the engines capabilities and features.

Only use what you need.

Builds are quite fast, aids in rapid development.

Urho3D is written in a modular and super-clean way, so that it can be integrated into the other parts of your game seamlessly.

Bugs are usually fixed that same day. Core devs are very active on forums. New features are always being worked on. HTML5, DirectX11, and OpenGL3.1 support have recently been added (as of 4/15/15).

You can configure rendering pipeline.

There are no lights limits per mesh.

Information on enabling OR support can be found here.

The AppGameKit Basic can now export to HTML5.

Supports developing games for Android, iOS, PC, Mac, Linux and now HTML5.

There is no charge for upgrades, or for extra platforms (the HTML5 version just appeared in the latest version), there are no subscription fees or other usage charges. If you publish onto either Apple or Google's stores you will have to pay their costs, of course, but the makers of AGK do not take a cut of this themselves.

Plug-ins can now be added to the Windows platform. Create your own Tier BASIC commands and call them using the AppGameKit Basic script language style.

AppGameKit supports instant testing on all connected devices. With the push of a button you can run your game on any device connected to the development machine.

Every function is fully documented with examples and exercises. The Tutorial PDF is a full Introduction to 3D game programming with integrated references to every functionality and its most important usecases. The documentation is regulary updated.

Program in tier 1 BASIC programming for every 3D game need.

A Raspberry Pi version is available and free. Users just need to register with the developer and then they can download.

It is a compilation based language, but the compilation is very fast. A project of about 1800 lines of code, for example, can compile almost instantly. (That's because it does not compile, it's an interpreter)

Informed, timely and intelligent feedback from the AGK forum.

There are plenty of functions which facilitate development and deployment. For example, the AGK player immediately plays the updated bytecode on Android devices then the online site helps with building an APK file for Google Play Store in minutes.

Software produced with the App Game Kit is written in a language called AGK Script. This language has powerful inbuild commands including commands for 2D graphics, physics and networking. The commands make use of the platforms' native functions to improve performance. They are also designed to enhance code readability. The AGK Script commands have extensive online documentation.

It runs fast with BASIC but if you want more you can use C++, it's also easy to use.

Libraries which provide the same functionality are available for the five platforms, so you can code in C++

AGK comes with an Integrated Development Environment (IDE) based on the Code::Blocks IDE for writing AGK scripts. A key feature of the IDE is its ability to broadcast compiled programs to other devices for testing.