add unzip to the list of depends for the dmdirc package. pacman needs them so it can unpack the .jar's (which is totally unnecessary)
[Desktop Entry]
Type=Application
Version=1.1
Encoding=UTF-8
Name=World of Padman
Comment=Free Ego-shooter game
Icon=/usr/share/pixmaps/wop.png
Exec=/usr/bin/WoP
Terminal=false
StartupNotify=false
Categories=Game;