For those wanting to play S3/SGC with their friends.

[TNTCreeper33]

i heard about this tool called melon loader and it "unlocks servers" i know its trusted but the unlock servers part yeah probably not, im mentioning it cause i see it in every tutorial i see, dont download it, dont, just because i mentioned it doesnt mean im true im not sure

It worked for me theres a website that has the game and mod pre installed but theres occasionally like 7 people online but it does work.