What happened with slendytubbies 3?

[Ibrahim8997]

ST3 Server support have been stopped as stated by Sean. It's unfortunate yeah but he can't do much about it since the game was built on an old, unsecure multiplayer system and it was hard to keep the servers stable when it was under constant attacks from hackers.

There are many fanmade alternatives you can play on or you could just play on the ones on roblox.