On April 1st, the OpenTTD project eventually released their 1.0.0 version:
In March 2004 OpenTTD 0.1 was released. Hardly a month later in April 2004 OpenTTD 0.2. And today, six years later… OpenTTD 1.0.0. It was a lot of work, hundreds of thousands of translations, tens of thousands of commits, thousands of graphics, hundreds of patches, dozen of sounds and musics, and one goal. How many people contributed? Dozen of artists, translators and developers, hundreds of testers and bug reporters, and also the thousands of players. Looking at the readmes and credit sections only gives a small hint. Some of those who were main contributors left long ago, and there are only a few who know them all and talked to them once via IRC or the forums. But if you consider all contributors, including those of the used libraries, and the external artists of OpenSFX… Well, then most likely not every contributor actually knows OpenTTD :)
OpenTTD is an open source clone of the Microprose game “Transport Tycoon Deluxe”. It attempts to mimic the original game as closely as possible while extending it with new features. Version 1.0.0 is also the first stable version, where one can use the alternative graphic, sound and music data files OpenGFX, OpenSFX and OpenMSX (instead of using the original data files from Transport Tycoon Deluxe).
Generic Linux binaries as well as various Debian and Ubuntu packages are available for download.