Thank you so much to everyone who's expressed interest in or is already starting translations of Oxygen Not Included. We still have a lot of work to do on the translation system, including fixing UI layout issues, adding font support for missing character sets and making sure the entire game is translatable. That being said, we've decided to release an early version of the translation tools so that you can start creating proper translations and we can start fixing problems with the system.
Along with Japanese/Korean font support, tomorrow we will be launching Steam Workshop Language Pack support. So you can upload your translations to the Steam Workshop and people can subscribe to those language packs. You should already have access to the language uploader by going to your Steam Library and switching from Games to Tools and installing the Oxygen Not Included uploader. If you wanted to get a head start on your translation, I've attached the latest strings file.
strings_template.