Editing OpenTTD (section)

{{Short description|Open-source business simulation game}}
{{Use mdy dates|date=September 2017}}
{{Italic title}}
{{Infobox software
| collapsible = 
| title = OpenTTD
| name = OpenTTD
| logo = Openttdlogo.svg
| screenshot = OpenTTD-1.11.0-nl.png
| caption = Title screen from version 1.11.0 with the ''OpenGFX'' graphics set
| platform = {{ubl|[[Microsoft Windows]]|[[macOS]]|[[Android (operating system)|Android]]|[[Solaris (operating system)|Solaris]]|[[FreeBSD]]|[[Linux]]|[[OS/2]]||[[Haiku (operating system)|Haiku]]}}
| released = 0.1 / {{Start date and age|2004|03|06|df=yes}}<ref name="OpenTTD_0.1">{{cite web |url=https://www.tt-forums.net/viewtopic.php?t=6559 |title=I proudly present to you OpenTTD! |author=orudge |date=2004-03-06 |website=Transport Tycoon Forums |access-date=2021-05-05}}</ref>
| latest release version = {{wikidata|property|preferred|references|edit|Q725120|P348|P548=Q2804309}}
| latest release date = {{wikidata|qualifier|preferred|single|Q725120|P348|P548=Q2804309|P577}}
<!-- not needed now: | latest preview version = 12.0-RC1
| latest preview date    = {{Start date and age|2021|09|25|df=yes}}<ref name="Blog: OpenTTD-12.0-RC1">{{cite web |url=https://www.openttd.org/news/2023/04/10/openttd-13-1 |title=OpenTTD 13.1 |date=2023-04-10 |access-date=2023-04-11}}</ref> -->| programming language = [[C (programming language)|C]], [[C++]], [[Objective-C]], [[Squirrel (programming language)|Squirrel]]<ref>{{cite web|url = https://github.com/OpenTTD/OpenTTD |title = GitHub repository |website = [[GitHub]] |access-date = 5 September 2021}}</ref>
| genre = [[Business simulation game]]
| author = [[Ludvig Strigeus]]
| developer = OpenTTD Team
| license = [[GNU General Public License|GPL-2-0-only]]<ref>[https://github.com/OpenTTD/OpenTTD/blob/master/COPYING.md copying] on github.com</ref>
| website = {{official URL}}
| repo = 
}}

'''''OpenTTD''''' is a [[business simulation game]] in which players try to earn money by transporting passengers, minerals and goods via road, rail, water and air. It is an [[open-source software|open-source]]<ref>{{cite web
| title      = About OpenTTD 
| work       = Official OpenTTD website
| url        = http://www.openttd.org/about
| access-date = 2009-12-11
}}</ref> [[Video game remake|remake]] and expansion of the 1995 [[Chris Sawyer]] video game ''[[Transport Tycoon#Transport Tycoon Deluxe|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, [[Porting|ports]] for several widely used [[operating system]]s, and a more user-friendly interface.<ref>
{{cite web
 |title=OpenTTD 0.7.4 
 |work=[[Heinz Heise|Heise]] Software Verzeichnis 
 |url=http://www.heise.de/software/download/openttd/52483 
 |access-date=2009-12-11 
 |url-status=live 
 |archive-url=https://web.archive.org/web/20091228003339/http://www.heise.de/software/download/openttd/52483 
 |archive-date=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          = http://www.tuxmagazine.com/pub/tux/tux014.pdf
 |access-date  = October 11, 2021
 |archive-date = March 14, 2023
 |archive-url  = https://web.archive.org/web/20230314173936/http://www.tuxmagazine.com/pub/tux/tux014.pdf
 |url-status   = dead
}}</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|GNU GPL-2-0-only]]<ref>{{cite web |title=OpenTTD |url=http://www.openttd.org/about |access-date=October 13, 2018 |website=OpenTTD}}</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 as the 8th most active open-source project to receive patches and contributions.<ref>
{{cite book
 |author1=Belenzon, Sharon 
 |author2=Schankerman, Mark A. 
 |name-list-style=amp 
 |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 
 |url-status=live 
 |quote=Position 8th, Name OpenTTD, Topic Simulation, License GNU GPL, License Type Highly Restrictive, Age 2, # Developers 11, # Patches received 874, # Patches Contributed 182
 |archive-url=https://web.archive.org/web/20110718173318/http://eprints.lse.ac.uk/25476/1/Motivation_and_Sorting_in_Open_Source_Software_Innovation.pdf 
 |archive-date=July 18, 2011 
}}
</ref> In 2004, development moved to their own server.<ref name=forums20180414/>
Since 2018, the project uses [[GitHub]] for its [[Version control|source repository]] and [[bug tracker]].<ref name=forums20180414>
{{cite web 
  |author1=TrueBrain 
  |title=OpenTTD source migration and other changes 
  |url=https://www.tt-forums.net/viewtopic.php?f=29&t=83056 
  |website=Transport Tycoon Forums 
  |access-date=10 August 2018 
  |language=en-gb 
  |date=14 April 2018
}}
</ref> Starting from April 1, 2021, the game is now also available on [[Steam (service)|Steam]].<ref>{{cite web |url=https://www.openttd.org/news/2021/04/01/openttd-1-11-0.html |title=OpenTTD 1.11.0 |author=TrueBrain |date=2021-04-01 |website=OpenTTD |access-date=2021-04-11}}</ref>