The developer's sleep paralysis and nightmare experience into a first-person 3D horror game. "Unsealed: The Mare" will be available on March 10

The developer's sleep paralysis and nightmare experience into a first-person 3D horror game. "Unsealed: The Mare" will be available on March 10
 PerpGames announced today (March 7, 2026) that the horror game "Unsealed: The Mare" developed by Sweden's Gamhalla will be available starting March 10. This game is based on the developer's sleep paralysis and nightmare experiences, and people with a weak heart should be careful....

The linked article is in Japanese.