Xbox Game Pass Officially Adds One of the Most Disturbing Sci-Fi Games of All Time

A stranded crew aboard Tulpar
Mouthwashing places players with five people aboard the spaceship Tulpar after the crew survives a crash. Rescue is not coming, supplies are dwindling, and the survivors remain trapped together.
Developed by Wrong Organ and published by Critical Reflex, the game asks players to piece together what happened on the freighter as conditions worsen. Its story unfolds through discoveries that change how players understand the crew.
Game Pass availability
The game joined Xbox Game Pass on October 29, arriving shortly before Halloween. Xbox Wire confirmed it is included with Game Pass Ultimate, Game Pass Premium and PC Game Pass.
Players can access it on Xbox Series X|S, PC, through cloud gaming and on handheld devices. Its arrival gives subscribers another horror title to consider for Halloween.
A story best approached fresh
Mouthwashing’s impact depends in part on learning about the crew over time. The story’s revelations are described as unsettling, so players may prefer to know little beyond its basic premise.
The game has also attracted attention because Karyn Kusama has an upcoming movie adaptation. Its addition to Game Pass offers subscribers a chance to experience the story themselves.
Key points
- Mouthwashing joined Xbox Game Pass on October 29, ahead of Halloween.
- The game follows five stranded crew members aboard the freighter Tulpar.
- It is available through Ultimate, Premium and PC Game Pass.
- Karyn Kusama has an upcoming movie adaptation of the game.

