So I downloaded the game normally from the site and a long time ago we used to play, now I wanted to play again with my friends sacricata the latest version all right, write their chatting and m meet and we agree where we have to find us.
and the fact that I do not see them do it in the game in the game's ranking

http://stickman.hu/forum/International_section/Port_forwarding_tutorial
Check this out

Also, if you were playing on a local network, that's a plausible reason.