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 20191019-master-g53f8d0b815, released on 2019-10-19 18:01 UTC.

• Documentation for AI scripting (xz/lzma archive)
  [ 301.5 KiB ]
  [ Checksums ]
  md5sum   : 5045e925e25407c67b3227f3040d1515
  sha1sum  : a738cd2e9cfb49b5de7316ca2526384f5b7aa59f
  sha256sum: 0427ff15d5247b1e6e5c367464d91a84b80b26ae9e5e8cd16f055ad9afeebf0d
  
• Documentation for Game scripting (xz/lzma archive)
  [ 386.0 KiB ]
  [ Checksums ]
  md5sum   : 2fba9c02be76f293bc7a30cc991568a8
  sha1sum  : 991aeb9305aba6b257c81339ca18a8facc0afab2
  sha256sum: 5c029c596dd7ab004c8260537dd052089a99c4a3cf763629dd36dc9de2a5a86d
  
• Documentation of Source (xz/lzma archive)
  [ 11.1 MiB ]
  [ Checksums ]
  md5sum   : f6d2cb153c7c2f3c9f5e14a0069e4875
  sha1sum  : 4c06a9761829fb895943de9cfea9f07ce4f4bfe9
  sha256sum: 62c0785c040d684b7474c5b09274417776b06fca0060d05ab163da778235c5cd
  
• MacOS 10.12+ (Apple Disk Image)
  [ 8.5 MiB ]
  [ Checksums ]
  md5sum   : e141b0c5bf9f8c799c78a70de4f4804b
  sha1sum  : 6b50b3dbe5e4aa9767310a983b40ca2187d3d829
  sha256sum: 2d786e8f2303657bc52613de8f6c4c281452685677c483370df57f2ca74ad1c8
  
• MacOS 10.12+ (zip archive)
  [ 6.9 MiB ]
  [ Checksums ]
  md5sum   : 0b0282d77e7032c483621e8c8d25ebd9
  sha1sum  : 39dd5d2a13c212fe7b69e3f861f62eb3ef9828b6
  sha256sum: 2945e44a422c52f0f482918900b19d2ee0ed8c9485316e82162b937d31f01b37
  
• Sources (xz/lzma archive)
  [ 6.4 MiB ]
  [ Checksums ]
  md5sum   : 174b68e27984d097d8795f686c935a78
  sha1sum  : 9fede853e1c369e47ddbb13e71945b45d5ff558e
  sha256sum: b4da7fe6034f08f79f032f9caaf5af5db8a33fae4f0fd6ad0eb43408eabdaac5
  
• Sources (zip archive)
  [ 10.8 MiB ]
  [ Checksums ]
  md5sum   : 491a10d49e7a3231ea2e94a859eeb536
  sha1sum  : acc004b8487920c92dd4c632b51d92868c926aa9
  sha256sum: 2a6edec1085b76972f1f4d1ee9faa4888a84cf087dd769cfa99631507a09e882
  
• Windows XP with SP3 / Vista / 7 / 8 / 10 (32bit) (zip archive)
  [ 5.4 MiB ]
  [ Checksums ]
  md5sum   : 5ea782330df93dfa3aa345db54bb0ad5
  sha1sum  : 63017b5e448e0b2a957c0012b3d8488a66e481bd
  sha256sum: d5533d30ccbf0589bf615ec7f6e4248218e422708d9396f8b2bcbe5a8b5b3188
  
• Windows XP / Vista / 7 / 8 / 10 (64bit) (zip archive)
  [ 5.9 MiB ]
  [ Checksums ]
  md5sum   : 17949ab9126e524ddb4d3965ce919edd
  sha1sum  : 09d2bdcdfc245a417d6d92f8b4bcbe172087f60a
  sha256sum: 6a74bd4a3ff8c3445dabe65bfda3e795147d5f23786efacd97ad76f5c6f661b4