Richard I of England and Philip II of France were very likely homosexual but still got married off in the hopes of creating an heir. Maybe a suitably bribed pope in the middle ages would have found a way to get a gay marriage passed. That it'd even be considered necessary is doubtful - that "at night their beds did not separate them" was likely good enough for that pair of K̶i̶n̶g̶s̶/Queens. So they could be well-aligned with the relevant historical period and setting.

I have zero familiarity with the game so am purely considering the title here.