The best free Game Development alternative to Adobe Animate is Wick Editor, which is also Open Source. If that doesn't work for you, our users have ranked more than 50 alternatives to Adobe Animate, but unfortunately only two of them are free Game Development Tools. If you can't find an alternative you can try to remove all filters.
The Wick Editor is a free and open-source tool for creating games, animations, and everything in-between. It's designed to be the most accessible tool for creating multimedia projects on the web. Your creations can run on any device with a web browser - that means mobile too.
Open-source editor runs in browser for making games, animations, and interactive content, offering vector drawing, timeline tools, asset import/export, JavaScript scripting, onion-skinning, plug-ins, and no installation or feature restrictions required.
Easier to use than Animate. Friendlier scripting API. Always growing. Bug fixes & new features added to GitHub source almost every day. Friendly devs and forum. It can't do everything Animate can (yet!) but give it some time. It sure beats Adobe's monopolistic business practices!