Game Center - Game Center brings social gaming to OS X and iOS apps.
Player.me - Player.me is the social discovery platform for the gaming community.
Arc Games - Arc brings your favorite games, communities, media and
Replai - Unlock the full potential of your video creatives with Replai
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.
Megacool - Simple SDK to record and share gameplay as a GIF