OpenTTD

2026-05-21T17:43:14Z

Yulorien: Add cargo income calculator to External links — interactive tool computing per-trip £ via economy.cpp formula; COI: site author

{{Gameinfo
|title = OpenTTD
|image = File:OpenTTD.png
|caption =
|genre = [[:Category:Transport infrastructure games|Transport Infrastructure]], [[:Category:Online multiplayer games|Online]]
|developer =
|code license = [[GNU General Public License|GPL]]
|media license = Graphics (OpenGFX): [[GNU General Public License|GPLv2]] <ref>[https://github.com/OpenTTD/OpenGFX License of graphics]</ref>
Sound (OpenSFX): [[Creative_Commons_Attribution-ShareAlike|CC BY-SA 3.0]], [[GNU General Public License|GPLv2]], [https://en.wikipedia.org/wiki/Common_Development_and_Distribution_License CDDL]<ref>[https://github.com/OpenTTD/OpenSFX License of sounds]</ref>
Music (OpenMSX): [[GNU General Public License|GPLv2]]<ref>[https://github.com/OpenTTD/OpenMSX License of music]</ref>
|engine =
|latest release = 15.1
|release date = Jan 24{{th}}, 2026
|release date iso = 2026-01-24
|release announcement = https://www.openttd.org/news/2026/01/24/openttd-15-1
|language = [[:Category:C++ games|C++]]
|library = [[Simple DirectMedia Layer|SDL]], [[Allegro|Allegro]]
|platforms = {{Linux}}, {{Windows}}, {{Mac}}
|link homepage = https://www.openttd.org/
|link blog = https://secure.openttd.org/www/en/
|link chatweb =
|chat =
|link feed = https://secure.openttd.org/www/en/news/rss
|link forum = https://www.tt-forums.net/viewforum.php?f=55
|link pad =
|link project = https://secure.openttd.org/www/en/development
|link tracker = https://github.com/OpenTTD/OpenTTD/issues
|link scmweb = https://github.com/OpenTTD/OpenTTD
|scm = git clone https://github.com/OpenTTD/OpenTTD.git
}}
{{Repositories
|right
|ArchExtra = openttd
|Fedora = openttd
|Suse = openttd
|Debian = openttd
|Flatpak = org.openttd.OpenTTD
}}
'''OpenTTD''' is a [[:Category:Economic simulation games|simulation]] game for [[:Category:Transport infrastructure games|transportation]] and a clone of the proprietary game ''Transport Tycoon Deluxe'' ("TTD"). The game's source code is licensed under the terms of the [[GNU General Public License|GNU General Public License version 2.0]].<ref>[https://metadata.ftp-master.debian.org/changelogs/main/o/openttd/stable_copyright OpenTTD copyright file] at [http://debian.org/distrib/packages Debian packages]</ref> Proprietary data files from the original TTD are ''not'' required to play the binary packed game. The game project has free/libre media files. There are official libre data sets for the graphics (OpenGFX), sounds (OpenSFX) and music (OpenMSX). Some GNU/Linux distributions already have packages for these, but if not, these can be downloaded and installed in-game from the extensions menu.<ref>http://www.openttd.org/en/news/110 Graphics and sound replacement complete, accessed on January 4{{th}}, 2010</ref>

OpenTTD has many improvements over its inspiration, TTD, such as larger maps and [[:Category:Online multiplayer games|online multiplayer play]]. It was written in the [[:Category:C++ games|C++]] programming language using the [[Simple DirectMedia Layer|SDL]] or [[Allegro|Allegro]] library.<ref>[http://www.ohloh.net/projects/openttd Ohloh.net report on openttd]</ref><ref>[http://packages.debian.org/testing/games/openttd OpenTTD debian package details on packages.debian.org]</ref>

==Development==
Branches of OpenTTD releases are divided up into nightly, testing, and stable releases.

==History==
OpenTTD originated with [[Ludvig Strigeus|Ludvig "Ludde" Strigeus]] when he started reverse engineering TTD in 2003. Eventually, the project bears fruit in 2004.<ref>[http://wiki.openttd.org/OpenTTD OpenTTD page on OpenTTD wiki] accessed on July 24{{th}}, 2009.</ref>

In October 2008 a graphics replacement set was released that uses the same license as the original game engine recreation project.<ref>[https://www.tt-forums.net/viewtopic.php?t=40162 [OTTD<nowiki>]</nowiki> OpenGFX releases - Graphics Replacement Project]</ref> That lead to the inclusion into Linux distributions like Fedora.<ref>[http://freegamer.blogspot.com/2009/08/example-of-why-license-matters.html An example of why a license matters]</ref>

Version 1.0.0 was released in April 2010.<ref>https://www.openttd.org/news/2010/04/01/openttd-1-0-0</ref>

The official sound set of OpenTTD, OpenSFX, was meant to be a libre sound set for the game actually was under a non-libre license for a very long time, way past the OpenTTD 1.0.0 release.<ref>License of OpenSFX 0.2.3, an old version: https://github.com/OpenTTD/OpenSFX/blob/0.2.3/docs/license.txt</ref> The sounds were licensed under [https://creativecommons.org/licenses/sampling+/1.0/ Creative Commons Sampling Plus 1.0], a retired<ref>https://creativecommons.org/2011/09/12/celebrating-freesound-2-0-retiring-sampling-licenses/</ref> non-free license (it has a non-commercial clause). So efforts have been made to completely rework the sound set to be 100% libre. Version 1.0.0 of OpenSFX, the first ''actually'' libre version, was released in March 12, 2021 without any big announcement.<ref>[https://github.com/OpenTTD/OpenSFX/commit/4057794c7efd6a0874efc4c8b2a779f28972c379 Prepare: Release 1.0.0]</ref> The sounds in OpenSFX are licensed CC BY-SA 3.0 from that point on.<ref>https://github.com/OpenTTD/OpenSFX/blob/1.0.0/docs/license.txt</ref>

===Release history===
See [[OpenTTD release history]].

==External links==
* [https://www.openttd.org/ OpenTTD homepage]
* [http://gameslikefinder.com/openttd/ OpenTTD Review]
* [https://smart-calculators.net/en-US/tools/openttd-cargo-income-calculator OpenTTD cargo income calculator — computes per-trip £ from cargo type, distance and days in transit]

==References==
<references/>

[[Category:Economic simulation games]][[Category:Transport infrastructure games]][[Category:GPL engines]]
[[Category:Engines]]
[[Category:2D engines]]
[[Category:Online multiplayer games]]
[[Category:C++ games]]
[[Category:OpenTTD]]
[[Category:SDL_games]]
[[Category:Allegro_games]]

Libregamewiki - User contributions [en]

OpenTTD