Mitch - The unofficial mobile app for itch.io

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.

GameDatum.com - A platfrom of free online games. A list of all the available online free games from various producers online.

RomCenter - Universal ROM Manager. List, examines and repairs all your ROMS. Missing roms ?

ScienceGameCenter - The goal of the Science Game Center is to demonstrate to teachers, scientists, museums, and parents the myriad ways games can be used to improve education in math and science.

EmuControlCenter - Manage roms and emulators for more than 190 gaming platforms with one tool