Latest stable release stuff - 0.5.3
README Information about release, must be read!!! ChangeLog Release changes Status List containing pending changes COPYING GNU general public license

Latest stable release packages - 0.5.3
Release files          Slim & 3.XX package OpenTTD wireless build for Slim & 3.XX firmwares          Source code OpenTTD source code

You can also browse archive here for older releases

  OpenTTD:: Official

  OpenTTD:: Guide

  OpenTTD:: Scenarios

  Macca's:: Scenarios