Game Center
Nakama
Armor Games
Kongregate
Mitch
Green Man Gaming
Enjify
Origin
Playfire
Gaikai
StreamMyGame
Gamefly
Ubitus
Vapor — LÖVE Distribution Client
Game Tree TV
Parsec
Game Center PlayfireBased on our record, Game Center seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
u/JTostitos is right though that Game Center was designed for this although it has gone out of style with many game studios lately. But it all depends on how the game is designed... If you require constant client-server communications then implementing Game Center doesn't really make sense when you can easily roll your own leaderboard on the server. Source: almost 2 years ago
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.
Gaikai - Gaikai is a company which provides technology for the streaming of high-end video games.
Armor Games - Play free online games at Armor Games! We're the best online games website, featuring shooting games, puzzle games, strategy games, war games, and much more...
StreamMyGame - With close proximities to OnLive, StreamMyGame doesn’t work like it, but it allows users to play whether Windows-based games they have on their systems from anywhere in the world on their Windows as well as on Linux system.
Kongregate - Kongregate has free games that you can play online. Choose from thousands of free flash games.
Gamefly - Leasing computer games used to be a foundation of computer game society.