ENIGMA Development Environment vs Blacksmith 2D

Almost full support for GML,
The ability to create and access C++ types, templates, and functions, compile DLLs and other C/C++ scripts

Support for Windows, Mac and Linux.

Enigma can support over 90% of gamemaker's GML language

besides the powerful combination between GML and C++, beginners can also use drag and dropping.

Written in C++, many features have been demonstrated running much faster than interpreted equivalents in GameMaker (up to 10-20 times faster than GM 8.1).

Changes are made daily to add new functions/fixing bugs.

A full stack trace with available cores and memory information as well as operating system and Java version including file names and number is generated whenever an exception is encountered, with a handy link to submit the issue to GitHub.

Automatically detects changes and updates bitmap cache. Allows to gain even more performance on heavy scenes and runs smoothly on old devices.

All engine code is written in ES6, fully GCC typed, allowing to eliminate all dead code from your app.

Dirty flag tracks scene changes and avoids unnecessary calculations and context calls. If no changes were made to the scene since last frame, no rendering will be done. Battery efficient.

According to the tests on the Github page, the performance is better than in Phaser!

The source code is well commented and easy to understand.

Super small build size through dead code elimination. The best for playable ads and Facebook Instant Games.