Hey guys,

I played crysis very intersive and now I think about to play crysis again. I want to know if it′s possible to play your own maps created with the sandbox editor online? That would be cool and a reason for me to play crysis again.

Yes it's possible. Check out my map-pack here:

https://secure.gamesas.com/news/community/crysis-2-pc--fan-made-map-pack-available

Also Crysis 2 Sandbox 3 Guide:

http://sdk.crymod.com/display/SDKDOC21/Home

Be sure to hope online tomorrow with the maps - Custom Maps fun day:

https://secure.gamesas.com/forums/viewtopic.php?f=40&t=42034

Ah ok,
but if I will creat a map with the sandbox editor, is it possible to play this map online ? Or only at singleplayer ?
What I have to do to play my own maps?
And are there many server playing their own maps?

Well yes did you even click on the links I gave you?

My map-pack for Crysis 2 Multiplayer.
The Sandbox guide for creating Crysis 2 Multiplayer maps.
And a Crysis 2 Community Multiplayer Event.

MULTIPLAYER............................

Ok sorry,
For sure I clicked the links you gave me, but my question was rather ambiguous.
I would like to know if I need an own server to play my own maps. And how does it work ?
Because I bought a server at Rackage and now I want to play custom maps. Who does that work?

Ask your server provider. They need to give you access to the FTP.