PlayFab - PlayFab is a backend platform for games, delivering powerful real-time tools and services for LiveOps.
wxWidgets - wxWidgets: Cross-Platform GUI Library
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.
Electron - Build cross platform desktop apps with web technologies
Metaplay.io - Build and operate Unity games at scale, featuring a liveops platform, game economy pipelines, scalable cloud servers, game programming tools, and more.
GTK - GTK+ is a multi-platform toolkit for creating graphical user interfaces.