Developer: Runing with Scissors
Release Date: September 24, 1997
Source Code Release Date: December 29, 2016
Postal is... something. It is simultaneously controversial and accepted. It is dark and sinister and yet also a parody not to be taken seriously. It's a satire of violence in pop culture while also being a violent piece of pop culture. A mass murder simulator handled with all the gravity of an angstly teenager doodling in a school notebook, when playing the game you're not sure to what extent you're witnessing a commentary on how society views violence, or if you're contributing to it.
It is also a fascinating slice of late 1990's game development outside of the major corporations and, given that the developer still exists today and still makes new entries in the series, an interesting example of long term success. They've made multiple sequels, spin-offs, remakes and even a movie.
When Runnning with Scissors released the source code to the public in 2016 they jokingly-not-jokingly said they wanted someone to port it to the Sega Dreamcast. Someone did. I figured if it can run on the Dreamcast it should also run on Mac and it does, officially, but only as a 32-bit Intel app.
So here it is. Back on the Mac again. Note that the assets it uses are the original version's, which is free on Steam and GOG, but not the Redux version. It should work with the files from either the Mac or Windows versions of the game.