"The relationship options in the game represent a playful alternate world rather than a real-life simulation," the company wrote. "We hope that all of our fans will see that 'Tomodachi Life' was intended to be a whimsical and quirky game, and that we were absolutely not trying to provide social commentary."
The #Miiquality campaign to include digital marriage equality in the game was launched by Tye Marini last week, a gay gamer based in Mesa, Ariz., and included social media pages and a video describing Marini's issues with the restrictive nature of relationships allowed in the game.
"I want to be able to marry my real-life fiance's Mii, but I can't do that," he said in the video. "My only options are to marry some female Mii, to change the gender of either my Mii or my fiance's Mii or to completely avoid marriage altogether and miss out on the exclusive content that comes with it."
Other video games with life simulation aspects, such as The Sims and the Fable roleplaying series, have allowed for same-sex relationships.