OpenTTD is an open source 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. For more information, see the file COPYING included with every release and source download of the game.
OpenTTD is modelled 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.
Significant enhancements from the original game include for example:
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bigger maps (up to 64 times in size)
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stable multiplayer mode for up to 255 players in 15 companies or as spectators
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dedicated server mode and an in-game console for administration
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IPv6 alongside IPv4 support for all communication of the client and server
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in game downloading of AIs, NewGRFs, scenarios and heightmaps
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new pathfinding algorithms that makes vehicles go where you want them to
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autorail/-road build tool, improved terraforming
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canals, shiplifts, aqueduct
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larger, non-uniform stations and the ability to join them together
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mammoth and multi-headed trains
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different configurable models for acceleration of vehicles
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clone, autoreplace and autoupdate vehicles
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possibility to build on slopes and coasts
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advanced/conditional orders, share and copy orders
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longer and higher bridges including new ones, full flexible tracks/roads under bridge
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reworked airport system with many more airports/heliports (e.g. international and metropolitan)
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presignals, semaphores, path based signalling
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support for TTDPatch newgrf features giving lots options for graphics and behaviour configuration/modification
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drive-through road stops for articulated road vehicles and trams
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multiple trees on one tile
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bribe the town authority
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many configuration settings to tune the game to your liking
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save games with zlib compression for smaller sizes which does not interrupt gameplay
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big support for internationalisation. OpenTTD is already translated into more than 50 languages
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dynamically created town-names in 18 languages and newgrf support
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freely distributable graphics, sounds and music
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framework for custom (user) written AIs
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zooming further out in the normal view and zooming out in the small map
OpenTTD - 64bit software
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Latest version: 12.0
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Release date: 2021-10-18