dpkg: considering removing openttd-data in favour of openttd ...
dpkg: no, cannot proceed with removal of openttd-data (--auto-deconfigure will help):
 openttd depends on openttd-data (= 1.3.3-1build1)
  openttd-data is to be removed.

dpkg: regarding .../openttd-1.4.2-linux-ubuntu-trusty-amd64.deb containing openttd:
 openttd conflicts with openttd-data
  openttd-data (version 1.3.3-1build1) is present and installed.

dpkg: error processing archive /home/yeti/Downloads/openttd-1.4.2-linux-ubuntu-trusty-amd64.deb (--install):
 conflicting packages - not installing openttd