Ontotis — Steam capsule
Steam capsule · 460×2152.14 : 1

Ontotis Free Download

by Xenoplasis Games

Windows · Oct 5, 2023

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is Ontotis worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Psychological horror players who want a story centered on a haunting and a character’s connection to it
  • Puzzle-game fans who prefer solving challenges to advance a narrative
  • Exploration-focused players who enjoy searching a property for story clues

Skip it if you…

Saves you a refund
  • Players seeking direct combat as the main activity rather than puzzles, chores, and investigation
  • Players who prefer light stories without psychological horror or frightening events
  • Players looking for an open-world experience instead of an investigation focused on one abandoned property

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on Ontotis

The ending depends on which items Robert uses and which mysteries he uncovers, tying the story’s conclusion to the investigation.

What is Ontotis?

Playing as Robert, a caretaker grieving his wife, the player arrives at an abandoned hilltop home during a severe storm.

Cut off from the outside world, Robert begins with routine chores, but strange events turn the assignment into an investigation of the house’s history and a mysterious figure connected to him. Progress comes through solving puzzles and finding scattered items and pages that reveal clues about the former residents. The story’s conclusion varies according to the items used and the mysteries uncovered. Ontotis presents its narrative as psychological horror, with events that blur the boundary between reality and nightmare.

How Ontotis plays

01Clue discoveries
Items and pages found around the property reveal information about the former residents and the haunting.
02Branching endings
The conclusion changes according to the items used and the mysteries uncovered.
03Storm-bound setting
A severe storm cuts Robert off from the outside world during the investigation.

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Picked by overlapping fit notes and genres, not an editorial comparison.

Ontotis: platforms & release

Is Ontotis worth it?

It is worth it if: psychological horror players who want a story centered on a haunting and a character’s connection to it. Skip it if: players seeking direct combat as the main activity rather than puzzles, chores, and investigation.

Where can I download Ontotis?

Use the Download Now button on this page: it opens Ontotis's store page, where you can choose how to get it.

What platforms is Ontotis on?

Windows only.

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