We're making a free suite of online tools for games, focused around cross-platform social interactions. To start with, we've got user sign-up (including google/apple/discord/twitter account linking), a leaderboard system that is a little bit more resistant to posting fake scores, and a quick and easy JSON database store. User sign up is optional for interacting with the leaderboard and database, it's possible to programatically create a "guest user" that can use all the services without forcing sign-in. You get a random username, and can create an account to pick a specific username and take your scores & data to different devices!
We're hard at work on a friend system, too. Ideally it would be really simple to post messages, challenge your friends to beat high scores, send game state - e.g. a seed in a roguelike game so your friends can jump straight in to the same game state, that sort of thing.
Are there any extra features you'd like to see from this sort of thing? The idea is that we handle all the infrastructure and you make cool games. What's on your wishlist, something where you think "I would love to add that to my game, but I'm not paying for hosting" 😉