Apps similar to Stingray include Open 3D Engine, which is free and open source. Other options are MonoGame, Cocos Creator, Arcade Game Studio and QICI Engine. In total there are nine Game Development Tools like Stingray for Windows, Mac, Linux, the web and self-hosting.
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.
United States
One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes.
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.
Spain
EU
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.
United Kingdom
Amulet is a free Lua-based audio/visual toolkit suitable for small games and experimentation. It runs on Windows, Mac, Linux, HTML5 and iOS.
Whitestorm.js is a framework for 3D web apps built with Three.js technology. It implements a core for fast development of a 3D scene with physics.
Russia
melonJS is an open source HTML5 game engine that empowers developers and designers to focus on content.
Bitmelo is a game editor and engine for making small pixel art games. The editor has everything you need to develop a game in one convenient location. You can code, draw tiles and tilemaps, design sound effects, view the documentation, and playtest your game, all without having...
