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 20190920-master-gceb29cef85, released on 2019-09-20 18:01 UTC.

• Documentation for AI scripting (xz/lzma archive)
  [ 301.4 KiB ]
  [ Checksums ]
  md5sum   : b681fad968b7abf2310f6c8d92e55b30
  sha1sum  : 4205a024298f00812f7c972ba47c7debb86413b7
  sha256sum: 6f83c76f463743ff20aecbfe9e0787c1eac599fe632ffb82f50d729532cf9328
  
• Documentation for Game scripting (xz/lzma archive)
  [ 386.4 KiB ]
  [ Checksums ]
  md5sum   : 3e1df2a20e463ed0bd35f7c67a03c7c3
  sha1sum  : 51c6087e391a9dfb2f2e82e0f8faded496a21f50
  sha256sum: 05032e44fb1f555bc665103ef32e3ceb8f35ae47ded8e856ddc1a3191ef8c2b1
  
• Documentation of Source (xz/lzma archive)
  [ 11.0 MiB ]
  [ Checksums ]
  md5sum   : f5b370f407a0a0f6951a61f378fb953a
  sha1sum  : 37e789b6717e2a4e3512396d900a1222ac1921ef
  sha256sum: 01c203991094c812f2ef89e6a482fc9e106b618b86f00b818565544c8e3995c9
  
• MacOS 10.12+ (Apple Disk Image)
  [ 8.5 MiB ]
  [ Checksums ]
  md5sum   : f14c05c9c4cc2e4345cbae98160dd74b
  sha1sum  : 02d2ab604eb1aaf4e80d5725eb20140227139669
  sha256sum: d1d266a1d1faba4bc292c9b26bc68fe7882c5042d03a359fa35546c51bec68a6
  
• MacOS 10.12+ (zip archive)
  [ 6.8 MiB ]
  [ Checksums ]
  md5sum   : a5f111a443e7d1d0f0bbb313780c6462
  sha1sum  : d271fe040d575c792eb1ae7843d5a21ebd308caf
  sha256sum: a1ae88024d78853bcdf17be94693a6c3c262b8c7957ced1e477e722705cfd42e
  
• Sources (xz/lzma archive)
  [ 6.4 MiB ]
  [ Checksums ]
  md5sum   : c14fe0c59096743ff85b153446c796c3
  sha1sum  : 89b80f0b499ed44c0cf4b12627486658f7026ac3
  sha256sum: 353796b3e48c7b7599c9c1eab743ff8186b0cd8a7c0ec7446af84a8c5ae832e6
  
• Sources (zip archive)
  [ 10.8 MiB ]
  [ Checksums ]
  md5sum   : 9e398045c474b8dff7744b2048172099
  sha1sum  : 5b7adcc3e8665beb2451f8bade205f6774046fb5
  sha256sum: 21a9672995c5dc7bc8a0bb587b3419e553599aa54188dbc9b0d48bf502b84694
  
• Windows XP with SP3 / Vista / 7 / 8 / 10 (32bit) (zip archive)
  [ 5.4 MiB ]
  [ Checksums ]
  md5sum   : 70b39b1b01fa298d51a05e08d8229238
  sha1sum  : 399bee06427aae5c8419742a4a89eb7837d58390
  sha256sum: 8d7233485a611cec14e4ba59fe218df956f06bf5320e2190da034c98370c7662
  
• Windows XP / Vista / 7 / 8 / 10 (64bit) (zip archive)
  [ 5.9 MiB ]
  [ Checksums ]
  md5sum   : 53c5984ed2eb943305cacdea5b8d10c3
  sha1sum  : 9ba6c33d247ec798218d0e7b0f3cc8367ac8d161
  sha256sum: 537198130f830648e4ebe1073c016e2f778d7899e1d7843b25f99e3536e2f74e