Bedrotting Simulator is a horror game played entirely through your own screen

Dead of night, and the glare of your monitor is the only light left in the apartment. You keep typing — begging your e-girlfriend to stay, digging for clues about your missing friend. The keyboard is the only lifeline. Something shifts outside the window, and you know better than to look.

The design decision underneath that is a hard one: everything the player can do has to fit inside applications on a fake desktop. Reply to her texts. Scrub encrypted threads and cursed video feeds for a trace of your friend. Lock the doors. Do not stumble onto the wrong account.

That last instruction is the one that gives the game its teeth. A desktop horror game lives or dies on whether opening the wrong folder feels like a mistake you made rather than a trap the designer set. When the interface is the world, curiosity has to be punished carefully — too gently and nothing is at stake, too harshly and players stop clicking anything at all.

Nights alone also mean pacing the apartment and dealing with things that have no right being in your home. The game splits into a screen half and a room half, and the tension comes from being unable to watch both.

How Her Story turns video clips into clues is the closest relative. A game built on searching through recordings has to make the search itself the skill, which means the material has to reward a player who notices a detail and goes looking for it deliberately, not one who exhausts every option in order.

What makes a game feel mysterious covers the other half. Mystery is not the same as withholding. A game that simply hides information produces frustration; a game that shows you something you cannot yet explain produces the thing this one is reaching for.

Is Until Dawn a good horror movie is worth reading against it too, because the failure mode of screen-based horror is becoming a film you occasionally touch. The window you are told not to look at only works if looking is genuinely available.

Bedrotting Simulator is by ixavon, published by Tailtone Games, coming to Windows with no date announced yet. It is filed under Adventure, Indie, Simulation and Strategy, which is a wider spread than most horror games claim and hints at how much of it is systems rather than scares.

The pitch is unusually specific about what you are doing with your hands: typing, scrolling, locking, checking. That specificity is a good sign. Vague horror pitches tend to mean the fear is meant to arrive from art direction alone.

If a game where the interface carries the dread appeals, Screenbound is the other one on this list playing with the frame you are looking through — a first-person platformer where the second screen you are holding changes the space you are standing in.