Based 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.
Unity - The multiplatform game creation tools for everyone.
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...
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Kongregate - Kongregate has free games that you can play online. Choose from thousands of free flash games.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.