OpenTTD is a clone of the Microprose game "Transport Tycoon Deluxe", a popular game originally written by Chris Sawyer. It attempts to mimic the original game as closely as possible while extending it with new features. OpenTTD is licensed under the GNU General Public License version 2.0. OpenTTD is modeled after the original Transport Tycoon game by Chris Sawyer and enhances the game experience dramatically. Many features were inspired by TTDPatch while others are original.
OpenTTD 0.5.2, the second bugfix release of the 0.5 series, was released today. It is suggested that all users of 0.5.1 and 0.5.0 upgrade to this version as it fixes a bug that could crash all clients and the server in a network game. This being a bugfix release means that no new features have been added, nevertheless you can have lots of fun with this release.