For OpenTTD you can use the original Transport Tycoon Deluxe data files (you need to own a Transport Tycoon Deluxe CD). There are also the free alternatives: OpenGFX (graphics), OpenSFX (sound) and OpenMSX (music). These can be installed automatically by the Windows and OS/2 installers. Please refer to the readme for more information.

You can download the free alternatives here: download OpenGFX, download OpenSFX and download OpenMSX.

For all binaries officially released by us we publish the MD5, SHA1, and SHA256 checksums. You can use these checksums to check wheter 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!

The grfcodec-trunk release is newer than the last grfcodec-nightly release. Please use the grfcodec-trunk release.

Latest release in grfcodec-trunk is r959, released on 2013-04-23 19:00 UTC.

• Linux Generic Binaries (x86_64, 64bit) (gzip archive)
  [ 435.5 kiB ]
  [ Checksums ]
  md5sum   : 0482eca1ca1216a561f16061e58b2890
  sha1sum  : e24432f2d9691e5578843c2c44df86b0400cb6b5
  sha256sum: 6ee4411e46985359010d834317c3a36e659c6db476fcf2d179e72d079703097d
  
• Linux Generic Binaries (i686, 32bit) (gzip archive)
  [ 419.7 kiB ]
  [ Checksums ]
  md5sum   : 0597470fc76702ff70a680579b8f9c0c
  sha1sum  : 81aec234e4e6639e13a8dc2544ed67302beee7dd
  sha256sum: 81fbf4e5290af20d28f210c52ebe7540960351b38aa094e06d3a1542efb6d3c8
  
• Sources (xz/lzma archive)
  [ 171.7 kiB ]
  [ Checksums ]
  md5sum   : 1b420f23d94d82dbc154cb46d93ab9df
  sha1sum  : 14681d0116cbc1ddd4591683699f2ee33153c061
  sha256sum: 6c98ab5ecfac300b676ab68311d906fe381094b948ed1675860fd3c2445e97ba
  
• Sources (zip archive)
  [ 288.4 kiB ]
  [ Checksums ]
  md5sum   : 0071f54d5b79345484fe3e259af4648b
  sha1sum  : 43223595046c3b82a910b3eeca599c31d174edd1
  sha256sum: 67b00759a3dfdc3eac7e7ff398b6b36235e1b5227efbeb430f7f9226692d3a30
  
• Windows XP with SP3 / Vista / 7 (32bit) (zip archive)
  [ 1.5 MiB ]
  [ Checksums ]
  md5sum   : d404125ab96cce8a9c912cede85a2965
  sha1sum  : 0041c184db01c8d28de36b682e88ff05674eed42
  sha256sum: f5f495582389a7b87149056be8fcd5b23152bef510857f57976c10b07aa6f0e5