Phaser

There are many good engines for creating 2D games, and Phaser is near the top of the list. It is not only free, but it is open source, so developers can make changes to the code if necessary. The engine also has support for plugins. Phaser is very easy to both learn and use. Experienced 2D game programmers should be up and running within minutes, and even new game developers should find a small learning curve. Developers can code their games using either JavaScript or TypeScript (a variant of ActionScript), and the software comes with a cloud-based IDE. In terms of features, Phaser is comparable with other 2D game engines. It has a very nice asset preloader and works with a variety of 2D physics libraries, such as Arcade and Ninja. It also has a built-in particle system, excellent animation tools, and a sprite system. Finally, games can use either the HTML5 Canvas or WebGL for rendering. Completed games can run on any web browser without users needing to download additional software such as plugins, and Phaser fully supports mobile browsers. Additionally, Phaser has a large and supportive community, and there are lots of tutorials as well as detailed examples on their website. On the downside, like many 2D game engines, Phaser doesn't have a visual editor, and it can be a bit painstaking to create a native mobile app with it. Still, those looking to create a simple web game could do far worse than Phaser.