OpenTTD requires a separate base graphics set to run, which can be downloaded through the installer (Windows) or on first run (Windows, Linux). In case you want to manually download and install it, some options are:

• OpenGFX (graphics)
• The Transport Tycoon Deluxe data files can be used as base graphics set. You must own a version of Transport Tycoon Deluxe; they cannot be downloaded.

Sound and music sets are recommended (but not necessary). OpenSFX (sound), and OpenMSX (music) can be installed via the installer or - if you own the CD - also the Transport Tycoon Deluxe sound and music.

Additional graphics, sound, and music sets can be downloaded via the ingame content download manager.

Please refer to the readme for more information.

For all binaries officially released by us we publish the MD5, SHA1, and SHA256 checksums. You can use these checksums to check whether the file you downloaded has been modified. All three checksums should match the file you downloaded; if this is not the case it means that either the file didn't come from us or that it got broken during transport. Either way it might possibly contain dangerous modifications and the file should therefore not be trusted!

Latest release in master is 20190519-master-gc1d26d8884, released on 2019-05-19 18:01 UTC.

• Documentation for AI scripting (xz/lzma archive)
  [ 300.8 KiB ]
  [ Checksums ]
  md5sum   : be0e6a03189d883f67783409e8987c46
  sha1sum  : 70879fe0227e26c25e12e4530b65ae86b960a484
  sha256sum: 1ab53513f94cd5de2fced09c47e8b6b9f3ab0f12d0cd6aacc7ea5c85c028e755
  
• Documentation for Game scripting (xz/lzma archive)
  [ 385.4 KiB ]
  [ Checksums ]
  md5sum   : 6e05dcbf8068236044c3864b8e49aa79
  sha1sum  : 2821e667dd2b00f2968b42d198f343815f1d2d72
  sha256sum: 4b55c983e711ca3c44cb691cd16c9aadc6e8a64fd7e81cde5e61659617e57a86
  
• Documentation of Source (xz/lzma archive)
  [ 11.1 MiB ]
  [ Checksums ]
  md5sum   : b6cea4c3f208b54875d590999b4734ca
  sha1sum  : 524024fbfe888bb4a69b967d35ee07d67dababb9
  sha256sum: b1da8f94adc73b0be0cbb0885375c51e0299850f9dbb2fc98be619964e215c79
  
• MacOS 10.12+ (Apple Disk Image)
  [ 8.5 MiB ]
  [ Checksums ]
  md5sum   : e22f43eb9bd27d21a743ef666c83fd7d
  sha1sum  : 6cf02eb60f07538a4dde92107d0b91ee2ae48234
  sha256sum: 52a2f20cb0bea2aac30fb558529aa420c589810693770ba8eb2b334fff263d28
  
• MacOS 10.12+ (zip archive)
  [ 6.8 MiB ]
  [ Checksums ]
  md5sum   : 9a505f91129e329611f18c19f4d35252
  sha1sum  : d097331741feebbf519eb35234810ecd89292d4f
  sha256sum: ba1ba2d772a694852efa2837662b215b0a81bbae13ce48577ff46d5b55a386d2
  
• Sources (xz/lzma archive)
  [ 6.4 MiB ]
  [ Checksums ]
  md5sum   : beb57610945876731ad2d39285eefe6f
  sha1sum  : 8fce0165ca6dc1c78f433123b0c34d62180e62c6
  sha256sum: 59af4d13364a70d05ce1a398ab83d3bec3911b599972bc452e5b2dd0a7e251c2
  
• Sources (zip archive)
  [ 10.8 MiB ]
  [ Checksums ]
  md5sum   : b946f5b02cbf812b4a20ea4c8c4efc66
  sha1sum  : 931ace5fa366395c2b7fab11f3868c9473e3e770
  sha256sum: 15e4f65c21e1838e16d6969b8a54cb564c448ed7b51a339e76a5328e49c74482
  
• Windows XP with SP3 / Vista / 7 / 8 / 10 (32bit) (zip archive)
  [ 5.4 MiB ]
  [ Checksums ]
  md5sum   : 0d2dc661de2dd488232b6490e027a68d
  sha1sum  : e21949bd37165327c8dbab665a50b78d254663f3
  sha256sum: 65655610fc891833891701b86aa3f3c1b5d2bc23106680b4777201f0064127bf
  
• Windows XP / Vista / 7 / 8 / 10 (64bit) (zip archive)
  [ 5.9 MiB ]
  [ Checksums ]
  md5sum   : 8997738cfd1c1a8cbccdbd1f05f99021
  sha1sum  : 869c1fc5e59ee9a5eba5b8dff1bda1a0ebe97eb8
  sha256sum: 897ab7d7619e919cce5f659f616cf13615ece4a664ba6e3d277e3c12c16d1d32