If you get anything like this in your syslog:
Dec 27 20:35:36 web2 amavis: (!!)TROUBLE in pre_loop_hook: config: no rules were found! Do you need to run ‘sa-update’? Dec 27 20:35:36 web2 amavis: (!)_DIE: Suicide () TROUBLE in…
In short, Colonizations has dependencies on Python 2.3 (or maybe 2.5, or both, nobody seems quite sure at the moment and both seems to be needed for all Civ IV games/mods to play nicely). Yosemite doesn’t ship that old software anymore.
While installing Lubuntu 14.04 on my laptop I found out the hard way of a bug in the installer regarding encrypted hard drive. To get around it you need to boot from the CD/USB and choose to try Lubuntu, open a terminal and run
# sudo swapoff -a