Fortunately there is no need for this page in the English version of our website.
We use she/her or he/him pronouns for people who (we think) identify as female or male. For people who are neither, we use they/them pronouns, in both singular and plural. The same goes for people whose gender is undetermined, such as “the player” or “the gamemaster”.
Check the German page, if you want to see how difficult non-sexist writing is in other languages.