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OpenTTD

0
OC
OpenTTD contributors
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Grow a transport empire by rail, road, sea and air.
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25 MB
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Credits and licenses

Prism lists this game from its makers' open source. They aren't affiliated with Prism.
OpenTTD 15.3
Code
GPL-2.0-only; bundled Squirrel and md5 (Zlib), fmt, nlohmann/json, OpenGL headers and social API (MIT), Monocypher (BSD-2-Clause or CC0-1.0), and in the Linux build ICU scriptrun (Unicode); see README.md
Art and sound
GPL-2.0-only (openttd.grf, the opntitle.dat title game and the OpenTTD TrueType fonts); orig_extra.grf is labelled GPL-2.0 but holds corrected original TTD sprites and serves only the commercial base sets
Source code
cdn.openttd.org/openttd-releases/15.3/openttd-15.3-source.tar.xz
OpenGFX 8.0
License
GPL-2.0-only
Source code
github.com/OpenTTD/OpenGFX/archive/refs/tags/8.0.tar.gz
OpenSFX 1.0.3
Code
GPL-2.0-or-later OR CDDL-1.1 (text files and scripts)
Art and sound
CC-BY-SA-3.0; source samples are public domain, CC0-1.0, CC-BY-3.0, CC-BY-SA-3.0 or an emailed grant; see opensfx.psfo
Source code
cdn.openttd.org/opensfx-releases/1.0.3/opensfx-1.0.3-source.tar.xz
OpenMSX 0.4.2
Code
GPL-2.0-only
Art and sound
GPL-2.0-only MIDI compositions; Jim Redfarn's eleven tracks by emailed grant
Source code
cdn.openttd.org/openmsx-releases/0.4.2/openmsx-0.4.2-source.tar.xz