Originally Posted by Baertram
Nope sorry, got no list. But I know of the folloing language patches/hacks:
PT, ES, IT, RU, PL, ZH
Not all of them are still in use or got updated recently though.
Btw: If you just load a fallback language as default (e.g. en.lua) first and afterwards, in the next line of your manifest.txt, load the dynamic file via $(language).lua, you got your english fallback language 
No need to load other files which are not needed at all into the lua memory this way.
Code:
Localization/en.lua
Localization/$(language).lua
... |
Thank you for this hint. That's definitely a better way to implement a fallback language.