Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript
Unity - The multiplatform game creation tools for everyone.
React Native - A framework for building native apps with React
Godot Engine - Feature-packed 2D and 3D open source game engine.
PhoneGap - Easily create apps using the web technologies you know and love: HTML, CSS, and JavaScript.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.