Testimonium

Testimonium is a short, linear experimental horror game designed to be completed in a single sitting of about 15 minutes. You play a man who opens his door expecting a Jehovah’s Witness, but finds a package instead. Inside is an unlabeled VHS tape marked with a symbol; playing it draws you into the tape.

Inside the tape

You wake in a rusted iron maiden and move through rooms tied to sin, blood-soaked rituals and puzzles. The story begins in an apartment and descends to a place far below, repeating in a loop of imprisonment and delivery.

Features

The game uses a crunchy 90s art direction and an unsettling atmosphere. It has no save system and minimal replay value, and includes achievements.