[sTaRs]

Please tell me a very nice gamemode give and a link if you can

[Mauzen]

If you want "a very nice gamemode", script one on your own. There are tons of servers hosting unmodified open-source gamemodes, so you do not need to add another one, there wont be player on it.
But with a new one you could get some players.

If you just need one for private games or so, specify just a bit more, what you want, there are not only tons of servers, but also tons of different gamemodes...