Thanks a lot! And glad you enjoyed our game. :)
We are thinking about including the definition of void in a next version, as we are currently reworking some of the definitions anyways. As we have often tried to make text, meaning and environment interact in some ways with each other, some of us thought that it was fitting to not have any definition for void, but we can see how including one could help people understand it better.
As we were mostly thinking about presenting identities that are not the norm, we didn't think much about further features for the cis room but (speaking for myself at least) I don't think any of us would want to say that cis equals being boring. There is such a variety in expressions and ways to live no matter whether you are cis or trans and even though there is the societal pressure to fit into some norms even inside of those norms are a myriad of ways to live it.