PlayStation 4 and PC sci-fi horror game SOMA, from the developers of Amnesia, will launch on September 22, Frictional Games announced on Friday. The studio also published a 12-minute gameplay trailer, offering an extended look at SOMA’s creepy environments and characters.

Writing on its website, Frictional explains that the video takes place about an hour into the game. The studio also points out that the video only shows off a small selection of places to explore in the level.

SOMA has been in development for nearly five years.

The game–set in an abandoned science facility–trades jumpscares for a slow buildup of tension, a deliberate effort to get inside your head, we wrote in our preview from last year.