nme

Heaps has it's own API, but other Haxe frameworks[1][2] reimplement the flash API. Some tools[3][4] help to convert AS3 source code to Haxe, and the typing and compiler are helpful to identify issues. So depending on the size and dependencies, conversion can be easy once you get past the main language differences. [1] https://www.openfl.org/ [2] https://github.com/haxenme/NME [3] https://github.com/HaxeFoundation/as3hx [4] https://github.com/innogames/ax3

Even better, Haxe. The language is very familiar for AS3 devs and it transpiles to performant C++. Many games such as Papers Please have been made with Haxe. There are numerous engines/libs for game devs: http://kha.tech/ https://www.openfl.org https://github.com/haxenme/NME

OpenFL is just one of the many Haxe frameworks, to be sure. For instance, Haxe is great for web applications too -- one of it's chief draws is that you can share the same code on the front end and the back end, but target whichever language is best for that. JS on the front, PHP/NodeJS/Neko/Etc/ on the back. UFront is just one great example: http://ufront.net/ As for other multimedia frameworks, here's my best attempt at an exhaustive list: OpenFL - http://www.openfl.org SnowKit - http://snowkit.org/ Kha - http://tech.ktxsoftware.com/ NME - https://github.com/haxenme/nme Flambe - http://getflambe.com/ HEAPS - https://github.com/ncannasse/heaps And things built on top of those: HaxeFlixel - http://haxeflixel.com/ HaxePunk - http://haxepunk.com/ Luxe Engine - http://luxeengine.com/docs/ Away3D - https://github.com/away3d/away3d-core-openfl

Quick note: this is NOT a flash player reimplementation. It's an API implementation. Thanks to Haxe, OpenFL apps can compile out to C++, HTML5, Flash, etc. I should also note that people might also be interested in the programming language that OpenFL is built on, Haxe, which has been around for ~10 years, is criminally underrated, and has many, many uses besides OpenFL's Flash API implementation (probably the most popular Haxe library). For instance, here are some other uses : - Isomorphic client/server web apps (http://ufront.net/) - Cross platform UI (http://haxeui.org/) - Other game frameworks - (snowkit: http://snowkit.org/) - (kha: https://github.com/KTXSoftware/Kha) - (nme: https://github.com/haxenme/nme) Course I'm a big fan of OpenFL! Also, for those who don't like the Flash API, OpenFL has a lower-level founda