things that I wish there could be revival remake etc [closed]

this is a list of things that I wish there could be revival or something

nk.pl (2006 polish facebook) (note: it was made to found old people from schools in Poland or something I never use it)

Gadu-Gadu  or gg in short (2000 polish version of msn messenger) (note: it was like msn messenger but in poland today this thing exist but it's full of pedos and weird people so I don't recommend you going to this)

ios 6 game center (I don't know if there's a jailbreak or something that allows to use ios 6 game center or is it normally functioning or completely dead)

let me know any other things that I completely missed because I don't know