Godot Engine - Feature-packed 2D and 3D open source game engine.
Play.ht - AI Voice and Speech Generation tool
Unity - The multiplatform game creation tools for everyone.
Blogcast - Turn your articles into audio
Cocos Creator - Cocos Creator is more than a efficient, lightweight, free, open-source, cross-platform graphics engine: it's also a platform to create 3D content in real time.
BeyondWords - BeyondWords is an AI voice and audio CMS platform that brings frictionless audio publishing to writers, newsrooms, and businesses. Free Pilot plan available!