I believe that these codes will not change soon... However, you can also try the exclusive code for beta testers. To make it work, you need to enter "хисоям". And yes, you correctly understood that you need to do this in Russian.
By entering it, you get the opportunity to generate futanari, you have new breast sizes, events and other content that is in the beta test stage... I found out it for a long time personally from the developer of this game, so I can only wish one thing - good luck, have fun.