Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
MongoDB Stitch - The serverless platform from MongoDB
Unity - The multiplatform game creation tools for everyone.
AWS Mobile Services - Storage, Analytics, Push Notif. & SMS Delivery SDKs
Godot Engine - Feature-packed 2D and 3D open source game engine.