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 20190326-master-g7a32cf1401, released on 2019-03-26 19:01 UTC.

• Documentation for AI scripting (xz/lzma archive)
  [ 298.4 KiB ]
  [ Checksums ]
  md5sum   : e33ce8da1e4eec93dcf170ebd10f3021
  sha1sum  : e186cd00bbb080d82cc0067ef36f59fa80b5bae2
  sha256sum: 8f8c86cbeb4359223ebbd7813d641b21f0bb81b951aefb54176b3fbfa698030c
  
• Documentation for Game scripting (xz/lzma archive)
  [ 383.1 KiB ]
  [ Checksums ]
  md5sum   : b16164f70e0669f27a144051d1bba825
  sha1sum  : afc3e4f8207bb47a806360b7bdff9cc6a2f8f5a7
  sha256sum: 2efec26052fc3e596b06b8c07c595ebaf621d8034c87f846acea76b5768ae5e5
  
• Documentation of Source (xz/lzma archive)
  [ 11.0 MiB ]
  [ Checksums ]
  md5sum   : 1c7121f2d4c0ff6eddc36af518e0552e
  sha1sum  : 0d403c7a4999a00f7bee66f01348a7632ec5c66e
  sha256sum: bfc56564540790dbd34c8fe5c829826b1cd0d96cecd7b6a1bf06c2bf15a4c4e9
  
• MacOS 10.12+ (Apple Disk Image)
  [ 8.5 MiB ]
  [ Checksums ]
  md5sum   : fe4f981e8c0a5b0aacfa6e1ab722b5a9
  sha1sum  : 7593a8f2abfefdba3a22cc6d4b2c796250b4e509
  sha256sum: 7e9f3247e5d0ba86745dc203dc077242bc194854300391a4b3c7fd3b4d5de6a7
  
• MacOS 10.12+ (zip archive)
  [ 6.7 MiB ]
  [ Checksums ]
  md5sum   : 5d99f5ea78a482bad4e1d2c25fd33f51
  sha1sum  : fe52666625217e62c573132f60f4e4e790892a8e
  sha256sum: 962489e36ea265ddfc22e09d4d452c7e42aeb6c80413549f22ffc8389bf0407a
  
• Sources (xz/lzma archive)
  [ 6.3 MiB ]
  [ Checksums ]
  md5sum   : dd880fa97ed88183fbbd850f157d7411
  sha1sum  : 44fd426f11ce881b5aec51820264f91f3678a43a
  sha256sum: 570a3df334ae94436e13ac075fc5c9739ee8823c67f093c0ddcdeffa226980e3
  
• Sources (zip archive)
  [ 10.8 MiB ]
  [ Checksums ]
  md5sum   : 4dd70054d7e8c8713491279418a3942d
  sha1sum  : 2431cbe791a9353cc1bd3124cd178082837e13be
  sha256sum: d27dd395795fec92e59cc9b803715d596417b838f1ca085575396d083cc2ac9a
  
• Windows XP with SP3 / Vista / 7 / 8 / 10 (32bit) (zip archive)
  [ 5.5 MiB ]
  [ Checksums ]
  md5sum   : 1d6daa49e2f217672ecca1b4d81c3613
  sha1sum  : 8c74c5e7d80c1b3956fc24dba1fad3dbbe265621
  sha256sum: 3b6e93898df57f1e6a6572aae34dc5b2aeef7f5f1a348ab497f03b3eadfc92cd
  
• Windows XP / Vista / 7 / 8 / 10 (64bit) (zip archive)
  [ 6.0 MiB ]
  [ Checksums ]
  md5sum   : 061e95b20dfc2dc9fc465c442ba9c857
  sha1sum  : d35d190f487e7a45b3248955203a8cb467a6655a
  sha256sum: ca441e88d99cf0ed45b0c283caa8257a740409b000274107cf74a57d60ff8173