Apps similar to Monkey X include Godot Engine, which is free and open source. Other options are Unity, LÖVE, microStudio and Bevy Game Engine. There's no shortage of Game Development Tools like Monkey X, with more than 25 alternatives for Windows, Linux, Mac, Android and iPhone.
Duality is a modular 2D game engine / editor combo, written entirely in C# and built on top of an OpenGL backend. It's open source, features an open architecture that invites extensibility and technical ownership, and it embraces C# as a language rather than a scripting...
Cocos Creator is a complete package of game development tools and workflow, including a game engine (based on Cocos2d-x), resource management, scene editing, game preview, debug and publish one project to multiple platforms.
Making games as the '80s arcade games. Includes Run'n'Gun, vertical & horizontal Shooters or Platform, makes games as Pac-Man, Commando, 1942, Ghosts 'n' Goblins or Gauntlet, with sprite sheets, pixel art, sound fx, & music. You get arcade feel.
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batari Basic (bB) is a BASIC-like language for creating Atari 2600 games. It creates a binary file that can be run on an Atari 2600 emulator or the binary file may be used to make a cartridge that will operate on a real Atari 2600.
The Graphics Development Engine for Business and Industry. Build high-quality 3D solutions and deploy to any platform.
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QICI Engine is a free and opensource JavaScript library, based on free and opensource game engine Phaser, with a web-based comprehensive suite of HTML5 game making editor.
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ItalyEU
HaxeFlixel is a 2D Game Engine that lets you create cross-platform games easier with free, open source technology!
GermanyEU
Flixel is and open source game-making library in ActionScript3. Designed for use with free tools Flixel is easy to learn, extend and customize.
United States
Build games and applications for almost every platform imaginable -- Windows, Mac, Linux, iOS, Android, BlackBerry, Firefox OS, Tizen, Flash and even HTML5.
United States
Amulet is a free Lua-based audio/visual toolkit suitable for small games and experimentation. It runs on Windows, Mac, Linux, HTML5 and iOS.
