{{Use mdy dates|date=September 2017}}

{{Infobox software

| collapsible =

| title = OpenTTD

| logo = Openttdlogo.svg

| caption =

| platform = [[Microsoft Windows]], [[macOS]], [[Android (operating system)|Android]], [[Solaris (operating system)|Solaris]], [[FreeBSD]], [[Linux]]

| released = 0.1 / {{Start date and age|2004|03|14|df=yes}}

| latest_release_version = 1.8.0

| latest release date = {{Start date and age|2018|04|01|df=yes}}

| latest preview version =

| latest preview date =

| genre = [[Single-player video game|Single-player]], [[Multiplayer video game|multiplayer]] [[Business simulation game]]

| author = [[Ludvig Strigeus]] (retired)

| developer = OpenTTD Team

| license = [[GPLv2]]<ref>[https://github.com/OpenTTD/OpenTTD/blob/master/COPYING copying] on github.com</ref>

| website =

| repo =

}}

[[File:OpenTTD-1.1.0-en.jpg|thumb|A screenshot of ''OpenTTD'' 1.1.0, with the ''OpenGFX'' graphics set]]

[[File:OpenTTD-1.3.3-en.png|thumb|A screenshot of ''OpenTTD'' 1.3.3, with the ''OpenGFX'' graphics set]]

[[File:OpenTTD 1 5 MegaStation with FIRS.png|thumb|A screenshot of ''OpenTTD'' 1.5.0]]

'''''OpenTTD''''' is a [[business simulation game]] in which players try to earn money via transporting passengers and freight by road, rail, water and air. It is an [[open-source]]<ref>{{cite web

| title = About OpenTTD

| work = Official OpenTTD website

| url = http://www.openttd.org/about

| accessdate = 2009-12-11

}}</ref> [[Video game remake|remake]] and expansion of the 1995 [[Chris Sawyer]] video game ''[[Transport Tycoon]] Deluxe''.

''OpenTTD'' duplicates most features of ''Transport Tycoon Deluxe'' and has many additions, including a range of map sizes, support for many languages, custom (user-made) [[artificial intelligence]] (AI), downloadable customisations, [[Computer port (software)|ports]] for several widely used [[operating system]]s, and a more user-friendly interface.<ref>

{{cite web

|title=OpenTTD 0.7.4

|work=[[Heise]] Software Verzeichnis

|url=http://www.heise.de/software/download/openttd/52483

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20091228003339/http://www.heise.de/software/download/openttd/52483

|archivedate=December 28, 2009

}}

</ref><ref name="dpopov">

{{cite journal

| author = Dmitri Popov

| date = June 2006

| title = OpenTTD – Open source hauls the classic Transport Tycoon Delux game into the future.

| journal = TUX Magazine

| pages = 44–46

| url = ftp://www.tuxmagazine.com/pub/tux/tux014.pdf

}}

</ref> ''OpenTTD'' also supports [[local area network]] (LAN) and Internet [[Multiplayer video game|multiplayer]], co-operative and competitive, for up to 255 players.

''OpenTTD'' is [[free and open-source software]] licensed under the [[GNU General Public License]] version 2.0<ref>http://www.openttd.org/en/about</ref> and is under ongoing development. According to a study of the 61,154 open-source projects on [[SourceForge]] in the period between 1999 and 2005, ''OpenTTD'' ranked 8th most active open-source project to receive patches and contributions. After 2005, development moved to their own server.<ref>

{{cite journal

|author1=Belenzon, Sharon

|author2=Schankerman, Mark A.

|lastauthoramp=yes

|date=October 2008

|title=Motivation and Sorting in Open Source Software Innovation

|publisher=EDS Innovation Research Programme, London School of Economics and Political Science

|url=http://eprints.lse.ac.uk/25476/1/Motivation_and_Sorting_in_Open_Source_Software_Innovation.pdf

|deadurl=no

|archiveurl=https://web.archive.org/web/20110718173318/http://eprints.lse.ac.uk/25476/1/Motivation_and_Sorting_in_Open_Source_Software_Innovation.pdf

|archivedate=July 18, 2011

}}

</ref>

==History==

The development of ''OpenTTD'' was driven by the desire to extend the abilities of ''Transport Tycoon Deluxe'' to support user-made additions to the graphics and gameplay. Also, users wanted to play the game on more modern [[operating system]]s and alternative computer architectures which ''Transport Tycoon Deluxe'' did not support, being released in 1994 for [[DOS]] and programmed in [[assembly language]].

===Prior modifications to ''Transport Tycoon Deluxe''===

There was a prior attempt to modify Transport Tycoon Deluxe to run on more modern operating systems. ''OpenTTD'' was preceded by a commercial conversion of ''Transport Tycoon Deluxe'' to run on [[Windows 95]]. It was created in 1996 by the FISH technology group, but Nola released in 1999 as part of a compilation of older ''Tycoon'' games. This release was still greatly restricted in operating systems and computer architectures it could run on. Similarly, there was an earlier success aiming to open ''Transport Tycoon Deluxe'' to modification by users. ''[[TTDPatch]]'', initially created by [[Josef Drexler]] in 1996–97 and still being developed in 2010, changes the behaviour of ''Transport Tycoon Deluxe'' as it is running, to introduce many new features to the game, such as new graphics, vehicles, industries, etc. ''TTDPatch'' is restricted by the same operating system and computer architecture limits as ''Transport Tycoon Deluxe'' and has limited control over what features of the game can be altered.

===Initial development of ''OpenTTD''===

In 2003, [[Ludvig Strigeus]] announced that he intended to [[reverse engineer]] ''Transport Tycoon Deluxe'' and convert the game to [[C (programming language)|C]]. In 2004, this re-engineered ''Transport Tycoon Deluxe'' was released and named ''OpenTTD''.<ref>

{{cite web

|title=OpenTTD 0.1.1

|work=[[SourceForge]] page about OpenTTD

|url=http://sourceforge.net/projects/openttd/files/openttd/openttd-0.1.1/

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20100702210528/http://sourceforge.net/projects/openttd/files/openttd/openttd-0.1.1

|archivedate=July 2, 2010

}}

</ref><ref>

{{cite web

|title=TTDPatch origin

|work=Transport Tycoon Forums

|url=http://www.tt-forums.net/viewtopic.php?p=284393#p284393

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20110927110931/http://www.tt-forums.net/viewtopic.php?p=284393

|archivedate=September 27, 2011

}}

</ref> This release was popular. {{As of|2018}}, ''OpenTTD'' is still under active development.

The early development of ''OpenTTD'' focused on restructuring the code to improve readability and extensibility. This allowed restoring features like sound and music, improving the user interface and introducing new languages for the GUI. Many new gameplay features and possibilities for user modification were also added around this time, aiming to replicate the abilities of TTDPatch. A major improvement was reprogramming multiplayer (network games) to use the [[internet protocol]], allowing multiplayer gaming online and over modern LANs.

By the late 2000s, ''OpenTTD'' was a stable and popular game and development moved toward more substantial changes. 2007 saw the development of support for custom, user-made AIs, which can provide players with more of a challenge than the original AI.<ref>

{{cite journal

|author1=Luis Henrique Oliveira Rios

|author2=Luiz Chaimowicz

|date=October 2009

|title=trAIns: An Artificial Intelligence for OpenTTD

|journal=VIII Brazilian Symposium on Games and Digital Entertainment

|publisher=Special Commission of Games and Digital Entertainment of the Computing Brazilian Society

|accessdate=2009-12-11

|url=http://www.sbgames.org/papers/sbgames09/computing/full/cp24_09.pdf

|deadurl=no

|archiveurl=https://web.archive.org/web/20110728000737/http://www.sbgames.org/papers/sbgames09/computing/full/cp24_09.pdf

|archivedate=July 28, 2011

}}

</ref><ref>

{{cite web

| title = NoAI Merge

| work = Official OpenTTD News

| url = http://www.openttd.org/news/84

| accessdate = 2008-01-18

}}

</ref><ref>

{{cite journal

|author=Carsten Schnober

|date=June 2009

|title=Projects on the move

|journal=Linux Pro Magazine

|publisher=Linux New Media USA, LLC

|accessdate=2009-12-11

|url=http://www.linux-magazine.com/w3/issue/103/Free_Software_Projects.pdf

|deadurl=yes

|archiveurl=https://web.archive.org/web/20120224065433/http://www.linux-magazine.com/w3/issue/103/Free_Software_Projects.pdf

|archivedate=February 24, 2012

|df=

}}

</ref> Other more major changes included introducing support for [[IPv6]],<ref>

{{cite web

| title = IPv6 support news article

| work = Official OpenTTD news

| url = http://www.openttd.org/en/news/92

| accessdate = 2010-03-07

}}

</ref><ref>

{{cite web

|title=Changelog for version 1.0

|work=Changelog in the svn branch 1.0

|url=http://svn.openttd.org/branches/1.0/changelog.txt

|accessdate=2010-03-07

|deadurl=no

|archiveurl=https://web.archive.org/web/20100308035734/http://svn.openttd.org/branches/1.0/changelog.txt

|archivedate=March 8, 2010

}}

</ref> an integrated download system for user-made customisations, and support for alternative base graphics, sound and music sets in 2009. Since 2007, ''OpenTTD'' is gradually being rewritten in [[C++]].<ref>{{cite web|title=Merge the cpp (C++) branch |work=Revision log of OpenTTD's version control system |url=http://vcs.openttd.org/svn/changeset/8038 |accessdate=2009-12-11 }}{{dead link|date=June 2016|bot=medic}}{{cbignore|bot=medic}}</ref><!-- Note: I like to link to something else, but the version control system/all sources I could find were from after the first time this fact has been published on Wikipedia and seem to be using Wikipedia as source, so Wikipedia can't use those sources. This leaves little else than linking to the version control system.-->

===Version 1.0.0===

Up until 2010, ''OpenTTD'' relied on the graphics, sound and music files from ''Transport Tycoon Deluxe''. While ''OpenTTD'' was [[free software]], it needed [[copyright]]ed components of a commercial game to work. Starting at the end of 2007, a large community effort worked to generate replacements for the 7000 [[2D computer graphics|2D]] [[Sprite (computer graphics)|sprites]] which make up the graphics of the game. Similar community efforts to create free sound effects and music soon followed. When the graphics and sound effect replacement projects (''OpenGFX'' and ''OpenSFX'', respectively) reached completion at the end of 2009, it was possible, for the first time, to play ''OpenTTD'' completely independently of ''Transport Tycoon Deluxe''.<ref>

{{cite web

|title=OpenGFX 0.2.0

|work=Official OpenGFX news

|url=https://dev.openttdcoop.org/news/21

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20091218163530/http://dev.openttdcoop.org/news/21

|archivedate=December 18, 2009

}}

</ref><ref>

{{cite web

|title=OpenSFX 0.2.0

|work=Official OpenSFX news

|url=https://dev.openttdcoop.org/news/20

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20100302135343/http://dev.openttdcoop.org/news/20

|archivedate=March 2, 2010

}}

</ref><ref>

{{cite web

| title = Graphics and sound replacement complete

| work = Official OpenTTD news

| url = http://www.openttd.org/en/news/110

| accessdate = 2009-12-11

}}

</ref>

A music replacement set ''OpenMSX'' is also available.<ref>{{cite web

|title=Music Replacement Project forum thread

|work=OpenMSX

|url=http://www.tt-forums.net/viewtopic.php?f=29&t=46479

|accessdate=2009-12-27

|deadurl=no

|archiveurl=https://web.archive.org/web/20100115155547/http://www.tt-forums.net/viewtopic.php?f=29&t=46479

|archivedate=January 15, 2010

}}

</ref> This was celebrated in early 2010 with the release of ''OpenTTD'' 1.0.0, named to reflect its new status as a fully stand-alone game.

===Version 1.1.0===

Released on April 1, 2011, OpenTTD 1.1.0 saw the re-introduction of Mac OS platform support. The 1.1.x series also saw extensions of the NewGRF and NewObject specifications, improvement of GUI loading times and pathfinding, and the introduction of a new command-line administrative interface that can be accessed over a network for remote servers.

<ref>{{cite web

|title=OpenTTD 1.1.0

|work=OpenTTD Wiki

|url=http://wiki.openttd.org/OpenTTD_1.1.0

|accessdate=2011-04-01

|deadurl=no

|archiveurl=https://web.archive.org/web/20110720124913/http://wiki.openttd.org/OpenTTD_1.1.0

|archivedate=July 20, 2011

}}

</ref>

===Version 1.2.0===

Released on April 15, 2012, OpenTTD 1.2.0 formally integrated graphics support for 32 bpp, and 2x and 4x zoom levels. These two features allow graphics developers to include graphics that feature higher resolutions and more details. For the first time the game can randomly create rivers automatically on map generation. The introduction of the Game Script feature allows developers to create scripted scenarios, new interactive goals, and achievements within games. Two new features alter the way the game can be played. Infrastructure Maintenance adds a new ongoing costs to owning infrastructure such as roads, rails, and signals. Airport Range implements a limit on how far aircraft can travel before needing to land at another airport facility. In-game documentation for NewGRFs was introduced, allowing developers to provide more information about NewGRF add-ons, including Internet links to external Web sites or other documentation.

<ref>{{cite web

|title=OpenTTD 1.2.0

|work=OpenTTD Wiki

|url=http://wiki.openttd.org/OpenTTD_1.2.0

|accessdate=2012-04-15

|deadurl=no

|archiveurl=https://web.archive.org/web/20120717155605/http://wiki.openttd.org/OpenTTD_1.2.0

|archivedate=July 17, 2012

}}

</ref>

===Version 1.3.0===

Released on April 1, 2013, OpenTTD 1.3.0 focused on improving the user interface, including GUI and textboxes. Formerly undocumented features which were unsupported were removed in later releases of the 1.3.x series, and support for new currencies and translations was introduced.

<ref>{{cite web

|title=OpenTTD 1.3.0

|work=OpenTTD Wiki

|url=http://wiki.openttd.org/OpenTTD_1.3.0

|accessdate=2013-04-01

|deadurl=no

|archiveurl=https://web.archive.org/web/20130415095829/http://wiki.openttd.org/OpenTTD_1.3.0

|archivedate=April 15, 2013

}}

</ref>

===Version 1.4.0===

Released on April 1, 2014, OpenTTD 1.4.0 saw a significant change in how the game can be played with the formal inclusion of the Cargo Distribution (CargoDist) patch. In the original Transport Tycoon Deluxe and prior versions of OpenTTD, passengers, mail and other cargo were not assigned a destination, and hence could be sent to any destination desired by players (effectively being unloaded at the next station accepting them). With the introduction of CargoDist, cargo are assigned a destination by the game when created, and will transfer as necessary to arrive at their destination. The game also regularly checks for new destinations that players have constructed, allowing cargo to be assigned to new destinations if available. Further improvements to the NoGo and NewObject specifications were included. Users can now create map sizes of up to 4096x4096. Players are now also able to load more NewGRF and NewObject sets, with an increase of up to 255 NewGRF or NewObject sets, and 64,000 different objects with nearly 16 million instances of objects. Later improvements of the 1.4.x series include optimization for building on more obscure operating systems.

<ref>{{cite web

|title=OpenTTD 1.4.0

|work=OpenTTD Wiki

|url=http://wiki.openttd.org/OpenTTD_1.4.0

|accessdate=2014-04-01

|deadurl=no

|archiveurl=https://web.archive.org/web/20140324013541/http://wiki.openttd.org/OpenTTD_1.4.0

|archivedate=March 24, 2014

}}

</ref>

===Version 1.5.0===

Released on April 1, 2015, OpenTTD 1.5.0 focused on improving the user interface and introduced more height levels. New features for NewGRF and NoGoal were also implemented.

<ref>{{cite web

|title=OpenTTD 1.5.0

|work=OpenTTD Wiki

|url=http://wiki.openttd.org/OpenTTD_1.5.0

|accessdate=2015-04-21

|deadurl=no

|archiveurl=https://web.archive.org/web/20150110212629/http://wiki.openttd.org/OpenTTD_1.5.0

|archivedate=January 10, 2015

}}

</ref>

===Version 1.6.0===

Released on April 1, 2016, OpenTTD 1.6.0 focused mainly on aesthetics by introducing a new, redesigned land generator which gave coastlines and hills a more curved, realistic terrain.

<ref>{{cite web

| title = OpenTTD 1.6.0

| work = OpenTTD Wiki

| url = http://wiki.openttd.org/OpenTTD_1.6.0

| accessdate = 2017-04-05

}}

</ref>

===Version 1.7.0===

Released on April 1, 2017, OpenTTD 1.7.0 includes NewGRF API extensions, and many bug fixes, including the extension of the DCxx range to D800-DFFF, et cetera.

<ref>{{cite web

| title = OpenTTD 1.7.0

| work = OpenTTD Wiki

| url = http://wiki.openttd.org/OpenTTD_1.7.0

| accessdate = 2017-04-05

}}

</ref>

===Version 1.8===

Released April 1, 2018.

==Gameplay==

{{See also|Transport_Tycoon#Gameplay|l1=Transport Tycoon Gameplay}}

''OpenTTD'' gameplay is very similar to ''Transport Tycoon Deluxe'', on which it is based, although there are many improvements in both options within the game and ease of use.<ref name="dpopov"/><ref>{{cite journal|url=http://dl.fullcirclemagazine.org/issue9_en.pdf |title=Install Open Transport Tycoon Deluxe (OpenTTD) |date=January 2008 |author=McCullagh, Jonny |journal=Ubuntu Full Circle Magazine |pages=20–21 |deadurl=no |archiveurl=https://web.archive.org/web/20110708182442/http://dl.fullcirclemagazine.org/issue9_en.pdf |archivedate=July 8, 2011 }}</ref>

A player's aim is to build a transportation network using trucks, buses, trains, airplanes and boats to link together industries and towns on the map and transport the cargo they produce. Every time a vehicle makes a delivery of some cargo, players receive an income, allowing them to build more infrastructure (rails, stations, etc.), build more vehicles, modify the terrain, and interact with towns, via their local authorities. The default game runs from 1950 to 2050, during which a player aims to get as high a performance rating (based on number of vehicles, income, amount of cargo delivered, etc.) as possible.

[[File:OpenTTD industry-commodity flow chart - Temperate.svg|thumb|300px|Chart illustrating flow of commodities between industries and towns in Temperate scenarios in ''OpenTTD''.]]

The world map is dotted with both industries and towns. Cargo for transportation is supplied by both industries (e.g. the coal mine which produces coal) and towns (which produce passengers and mail) and accepted by other industries and/or towns according to their needs (e.g., the power station accepts coal). Placing a station near a source and a receiver of a certain cargo allows transportation between the two. The amount of cargo supplied by a town or industry depends on the quality of transport players provide to move its goods. Payment for delivering cargo depends on the quantity of cargo delivered, how fast it was delivered and how perishable it is. Some cargoes (e.g., passengers) must be delivered faster than others (e.g., coal) to earn a good income.

[[File:OpenTTD difference block path signals.svg|thumb|280px|The introduction of ''Path Signal'' to OpenTTD, in addition to the traditional ''[[Automatic block signaling|Block Signal]]'' from the original Transport Tycoon, increases throughput of railway junction-crossing.]]

During the course of the game, players must build and expand their transport infrastructure. The only infrastructure present on the map at the start of the game are roads within towns. All other infrastructure—ports, stations, airports, rail, and depots—must be built by players. The tools for building a rail network are particularly powerful, and players have access to many different signal types to build a complex and interconnected rail network.

During the course of the game, technology improvements give players access to newer, faster and more powerful vehicles. For rail transport, new track technology also becomes available over time, first [[Railway electrification system|electrified rail]], then [[monorail]] and [[maglev]] track. In general, newer vehicles cost more money to buy and run, and players must have earned enough money in earlier stages of the game to be able to afford to upgrade their vehicles. The full course of the default game, from 1950 to 2050, takes around 24 hours.<ref>

{{cite web

|title=Game speed is too fast

|work=Transport Tycoon Forums

|url=http://www.tt-forums.net/viewtopic.php?p=574774#p574774

|accessdate=2009-12-11

|deadurl=no

|archiveurl=https://web.archive.org/web/20110927111002/http://www.tt-forums.net/viewtopic.php?p=574774

|archivedate=September 27, 2011

}}

Note: 2.22 seconds a game day -> 2.22 * 365 (days in year) * 100 (years) / 3,600 (seconds in hour) results in about 22.5 hours

</ref> Players can optionally start at earlier dates and play on past 2050, although no new technology becomes available.

''OpenTTD'' can be played by one player, against a computer controlled AI, or by many players against each other, over a LAN or the Internet.

===Multiplayer===

''OpenTTD'' supports multiplayer games for up to 255 players between 15 different transport companies, and can be played both over a LAN or over the Internet. Each transport company is in competition with each other transport company, and each transport company can be controlled by more than one player at any time. This allows both co-operative and competitive multiplayer games. Competitive team games (e.g. two transport companies, both controlled by three players) are also possible.

===Mods and online content===

''OpenTTD'' supports extensive [[mod (computer gaming)|modification]] for both single player and multiplayer games. Modifications come in the form of a "NewGRF" (New Graphics Resource File). NewGRFs package both new graphics (2D sprites) and the [[computer code]] which describes how the new graphics should be used. Many aspects of the game can be altered by NewGRFs; a NewGRF can introduce a complete new set of vehicles, new industries and the cargoes they produce, new town buildings, new rail graphics and behaviour, etc. NewGRFs, along with heightmaps, scenarios and custom AIs, can be downloaded and installed using the "BaNaNaS" in-game online content system.<ref name="bananas">{{cite web | url=http://bananas.openttd.org/en/ | title=OpenTTD – BaNaNaS | publisher=OpenTTD Team | year=2011 | accessdate=December 2, 2011}}</ref>

==Platforms==

Due to its use of [[Simple DirectMedia Layer]] [[cross-platform]] graphics and sound layers, ''OpenTTD'' can be compiled and run on many different [[operating system]]s. The officially supported operating systems are the 32/64-bit variants of:<ref>

{{cite web

| title = About OpenTTD

| work = Official OpenTTD website

| url = http://www.openttd.org/about

| accessdate = 2010-04-01

}}

</ref><ref name="Operating Systems OpenTTD Wiki">

{{cite web

| url=http://wiki.openttd.org/Operating_system

| title=Operating System

| accessdate=March 23, 2011

}}

</ref> BSDs ([[FreeBSD]], [[NetBSD]], [[OpenBSD]]), [[Linux]], [[Microsoft Windows]] (95/98/ME/2000/XP/Vista/7/8, and later), [[Solaris (operating system)|Solaris]], and [[macOS]].

Unofficially supported devices include: [[Android (operating system)|Android]] phones, the [[Nintendo DS]], [[Wii]], and [[PlayStation Portable]].<ref name="Operating Systems OpenTTD Wiki" /><ref>{{cite web | url=http://wiki.openttd.org/Portable_device_version | title=Portable device version | accessdate=March 23, 2011}}</ref>

The game could even be played on virtual desktops, like [[Spoon (software)|Spoon.net]].<ref>{{cite web |url=https://spoon.net/openttd |title=OpenTTD on Spoon |accessdate=2012-02-12 |deadurl=yes |archiveurl=https://web.archive.org/web/20110830000954/http://spoon.net/OpenTTD |archivedate=2011-08-30}}</ref>

==Reception==

OpenTTD has been praised for the amount of improvements it has made to the original Transport Tycoon Deluxe, such as the AI, graphics, sounds, and ability to play multiplayer.<ref>{{cite web

|last=Blake

|first=Michael

|title=PC Gaming: Doomed? or zDoomed?

|url=http://uk.pc.ign.com/articles/117/1177873p1.html

|publisher=IGN

|accessdate=August 10, 2011

|deadurl=no

|archiveurl=https://web.archive.org/web/20110627045727/http://uk.pc.ign.com/articles/117/1177873p1.html

|archivedate=June 27, 2011

}}</ref>

OpenTTD received the most votes for Game of the Year for the 2004 Amiga Games Award.<ref>{{cite web

|title=Amiga Games Award 2004

|url=http://obligement.free.fr/hitparade/award2004.php

|publisher=Amiga Games Hit Parade

|accessdate=November 25, 2014

|deadurl=no

|archiveurl=https://web.archive.org/web/20141205081329/http://obligement.free.fr/hitparade/award2004.php

|archivedate=December 5, 2014

}}</ref>

Lewis Denby from [[PC Gamer]] ranked OpenTTD 20th in its May 2011 list of best free PC games.<ref>{{cite web

| last= Denby

| first= Lewis

| title= 20 free PC games you must play

| url= http://www.pcgamer.com/2011/05/03/20-free-pc-games-you-must-play/

| publisher= PC Gamer

| accessdate= February 28, 2012

}}</ref>

Hungarian Unix Portal users chose ''OpenTTD'' as favourite (free) game in 2005, 2007, 2009, and 2010.<ref>

{{cite web

| title = HUP Olvasók Választása Díj 2005 – eredményhirdetés

| work = Hungarian Unix Portal (HUP)

| url = http://hup.hu/node/10324

| accessdate = 2009-12-11

| language = Hungarian

}}</ref><ref>

{{cite web

|title=HUP Olvasók Választása Díj 2007 – eredményhirdetés

|work=Hungarian Unix Portal (HUP)

|url=http://hup.hu/node/48704

|accessdate=2009-12-11

|language=Hungarian

|deadurl=no

|archiveurl=https://web.archive.org/web/20100131203006/http://hup.hu/node/48704

|archivedate=January 31, 2010

}}</ref><ref>

{{cite web

|title=HUP Olvasók Választása Díj 2009 – eredményhirdetés

|work=Hungarian Unix Portal (HUP)

|url=http://hup.hu/cikkek/20100110/hup_olvasok_valasztasa_dij_2009_eredmenyhirdetes

|accessdate=2010-01-14

|language=Hungarian

|deadurl=no

|archiveurl=https://web.archive.org/web/20100115000432/http://hup.hu/cikkek/20100110/hup_olvasok_valasztasa_dij_2009_eredmenyhirdetes

|archivedate=January 15, 2010

}}</ref><ref>

{{cite web

|title=HUP Olvasók Választása Díj 2010 – eredményhirdetés

|work=Hungarian Unix Portal (HUP)

|url=http://hup.hu/cikkek/20110109/hup_szavazas_hovd_2010_hup_olvasok_valasztasa_dij

|accessdate=2011-05-03

|language=Hungarian

|deadurl=no

|archiveurl=https://web.archive.org/web/20110113150641/http://hup.hu/cikkek/20110109/hup_szavazas_hovd_2010_hup_olvasok_valasztasa_dij

|archivedate=January 13, 2011

}}</ref> In 2014 ''OpenTTD'' was named by [[PCGamer]] among the "Ten top fan remade classics you can play for free right now".<ref>{{cite web|url=http://www.pcgamer.com/ten-top-fan-remade-classics-you-can-play-for-free-right-now/ |title=Ten top fan-remade classics you can play for free right now |author=Craig Pearson |date=January 1, 2014 |publisher=[[PC Gamer]] |deadurl=no |archiveurl=https://web.archive.org/web/20160510051006/http://www.pcgamer.com/ten-top-fan-remade-classics-you-can-play-for-free-right-now/ |archivedate=May 10, 2016 }}</ref>

In 2015 and 2016, [[Rock, Paper, Shotgun]] ranked ''OpenTTD'' 8th on its The 50 Best Free Games on PC list.<ref>{{cite web|title=The 50 Best Free Games on PC|url=https://www.rockpapershotgun.com/2015/10/16/best-free-games-on-pc/44/|website=[[Rock, Paper, Shotgun]]|accessdate=October 9, 2016|date=October 16, 2015|archiveurl=https://web.archive.org/web/20161009103623/https://www.rockpapershotgun.com/2015/10/16/best-free-games-on-pc/44/|archivedate=October 9, 2016|deadurl=no}}</ref><ref>{{Cite web|url=https://www.rockpapershotgun.com/2016/10/31/the-50-best-free-games-on-pc/44/ |title=The 50 Best Free Games on PC |last=RPS |date=October 31, 2016 |website=Rock, Paper, Shotgun |language=en-US |access-date=2017-03-10 |deadurl=no |archiveurl=https://web.archive.org/web/20170312204634/https://www.rockpapershotgun.com/2016/10/31/the-50-best-free-games-on-pc/44/ |archivedate=March 12, 2017 }}</ref>

==See also==

{{Portal|Free software}}

* [[List of open-source games]]

* ''[[Simutrans]]''

* ''[[Transport Tycoon]]''

* ''[[Voxel Tycoon]]'' - A game "heavily inspired" by ''Transport Tycoon'' and, by extension, ''OpenTTD''.

==References==

<!-- Please see [[Wikipedia:References]] for an elaborate guide on how to add references to this section. -->

{{Reflist|30em}}

==External links==

{{Commons category|OpenTTD}}

* {{Official website|//www.openttd.org}}

* [http://wiki.openttd.org/Main_Page ''OpenTTD'' wiki]

{{DEFAULTSORT:Openttd}}

[[Category:Transport Tycoon]]

[[Category:Windows games]]

[[Category:AmigaOS 4 games]]

[[Category:Linux games]]

[[Category:MorphOS games]]

[[Category:Multiplayer online games]]

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[[Category:Fangames]]

[[Category:Free software programmed in C++]]

[[Category:Train simulation video games]]

[[Category:Open-source video games]]

[[Category:MacOS games]]

[[Category:Video games with isometric graphics]]

[[Category:Video games with tile-based graphics]]

[[Category:Transport simulation games]]

[[Category:Business simulation games]]

[[Category:Free software that uses SDL]]

[[Category:Multiplayer and single-player video games]]

[[Category:Creative Commons-licensed video games]]

[[Category:Video games developed in Sweden]]

[[Category:Free and open-source Android software]]