The best IDE alternative to GameMaker Legacy is GDevelop, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to GameMaker Legacy and four of them are IDEs so hopefully you can find a suitable replacement. Other interesting IDE alternatives to GameMaker Legacy are Project Anarchy, JMonkeyEngine and thinBasic Programming Language.
GDevelop is an open-source game making software designed to be used by everyone. Any kind of 2D games can be created with it and no programming skills are required to get started. Logic of games are made using visual events.
Project Anarchy is a complete end to end game engine and state-of-the-art toolset for mobile. Project Anarchy includes an entirely free license to ship your game on iOS, Android and Tizen platforms.
JMonkeyEngine3 it’s a free, open source game engine, made especially for Java game developers who want to create 3D games using modern technology. The software is programmed entirely in Java, intended for wide accessibility and quick deployment.
Very fast BASIC like programming language for console and gui applications, automate process, automate data exchange, connect to databases, send mails, ftp, rest api, parsing, tokenizing, files, OpenGl, graphics, sound, printing ... much more.
France
EU
Ireland
Italy
Similar to GameMaker: Studio and Construct 2, GDevelop allows you to develop software, particularly games, for Windows, Mac, Linux and HTML 5. It allows you to program your apps and games using an event-based system, just like Construct 2.