Ludus mainly supports Latin languages. For technical matters, we cannot support any other languages such as Chinese or Japanese in custom fonts at the moment.
The same reason applies for the RTL languages like Arabic or Hebrew. Currently, Ludus does not support them.
We acknowledged that it is an important feature to be implemented in our tool and we would love to be able to offer it in the near future. You will be definitely notified, as a user, when this feature will become available.