ST3 servers are completely and permanently shut down.

[TylerNK10]

Los servidores S3 están caídos en su mayoría debido a los hackers.

nah dude, i loved to play S3 back in the day, everything becase the stupid ahh hackers. Idk why zeoworks decided to close S3 servers

Im assuming its because it was probably just easier for them to shut down servers than to deal with constant hackings and/or making the game harder to hack into or something its really unfortunate either way