Hey! The Decompilation project for Sonic Runners is now available to the public. Details: https://github.com/itsmattkc/RunnersDecomp
Hopefully this means someone can set up a server for the original, vanilla, game as it was and not have it go down so easily.
Isn't that already a thing? Runners Revival has been around for years. Is this just an announcement of open sourcing it?
'Open source' does not mean 'source code is available to the public', it requires that the code be made available under an open source licence. The Open Source Definition covers this in more detail.