Even though OpenTTD 1.4.0 was recently released as final, it looks as if some issues have cropped up namely bugs and crashing that needed to be fixed. So here we are again with another update, this time OpenTTD version 1.4.1(RC1) which hopes to fix those problems and improve the game further. In a recap about the game : OpenTTD is an open source version of Transport Tycoon Deluxe, an incredibly fun and addictive real time strategy and management game with you running a transport company, based on the original Microprose title. The latest version has many improvements from the original game such as a much bigger map size and more! So without further ado read on for the all important change log and download!
Release : Free Standalone! Systems : PC, MAC
Changelog (Warning it's a BIG list) : http://binaries.openttd.org/releases/1.4.1-RC1/changelog.txt
Website : http://www.openttd.org/en/
Download : http://www.openttd.org/download-testing
For OpenTTD you can use the original Transport Tycoon Deluxe data files IF you so wish (you need to own a Transport Tycoon Deluxe CD).
There are also the free alternatives without the need for TTD: OpenGFX (graphics), OpenSFX (sound) and OpenMSX (music). These can be installed automatically by the Windows and OS/2 installers