Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Unity - The multiplatform game creation tools for everyone.
Android Studio - Android development environment based on IntelliJ IDEA
Godot Engine - Feature-packed 2D and 3D open source game engine.
Xcode - Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.