Problems with adding game to desktop

Hello everyone,

I installed the game Freecol on my One and if i run it from the file manager it works fine.
Ive followed the steps explained in this topic:
viewtopic.php?f=39&t=739
There wasnt a picture and desktop file available, so i made them myself as explained there and put them in the right folders.
The picture and the name are showing perfectly in the menu, but it doesnt launch the game.
This is the .desktop file i made:
[Desktop Entry]
Encoding=UTF-8
Name=FreeCol
Comment=Colonize the world
Exec=/home/user/freecol/freecol
Icon=freecol.png
Terminal=false
Type=Application
Categories=Application;Game;
StartupNotify=true

Did i do something wrong with this, cause i just copied the Xchat .desktop and edited it.
It does load the picture, name and comment perfectly, but it doesnt start the game itself.

Thank you for your help,

Prod