GameRoom - Make your video-games library shine!
Tracker.GG - Track user stats from CSGO, Destiny 2, COD
QuickPlay - Quickplay the universal emulator Frontend
Dotabuff - Dotabuff is the leading statistics and community website for Dota 2
GameEx - GameEx is considered to be the most powerful and feature rich front-end for MAME, GameBase, Daphne, PC Games and all command line based game emulators, along with being a complete Home Theatre PC solution.
FortniteTracker - FortniteTracker is a web-based online stats generator for Fortnite games, having detailed information related to every aspect.