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This is the development repository of multiple projects by members of the OpenTTD Community as well as friends of #openttdcoop, please refer to the separate project pages for further details.

Unless stated differently, all projects here are licensed under GPL-2.0+.
Projects generally must have a free license. See our policy here .

CC-GNU GPL

public IRC channel: #openttdcoop.devzone (Webchat)

Instructions for getting started with development, getting used to tools and DevZone interfaces, see the DevZone wiki

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Latest news

NewGRF Meta Language: NML repo moved to GitHub
NML repo is now on GitHub https://github.com/OpenTTD/nml
Added by andythenorth 3 months ago

NewGRF Meta Language: NML 0.4.2 released
NML 0.4.2 is released and contains next to the support for more than 64 industries and important fix which ensures reproducable compilation by enforcing reproducable sorting of language strings
Added by planetmaker over 3 years ago

NewGRF Meta Language: NML 0.4.1 released
Maintenance release which (hopefully) makes packaging possible again
Added by planetmaker almost 4 years ago

OpenGFX: OpenGFX 0.5.2
Maintenance release with additional spirtes to support OpenTTD 1.5.0
Added by planetmaker almost 4 years ago

DevZone Help Center: Activation of retention policy
Added by Spike about 4 years ago

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