Ontotis

Ontotis

Released Oct 2023

As a caretaker trapped by a severe storm, you must secure an abandoned hilltop home. When routine chores spiral into terror, uncover the residents' chilling fate, solve puzzles, and unravel the truth behind a mysterious haunting entity deeply connected to you in this psychological horror game.

83% positive · 117 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence

Where to buy

Steam $5.99
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Evaluation

Ontotis is a solo-developed psychological horror game that launched on October 6, 2023. In the weeks following launch, the developer was very active, shipping a rapid series of patches (v1.0.3 through v1.1) to address community feedback — fixing bugs, tuning difficulty, adding events, and expanding language support. This continued into early 2024 with v1.3 (January 22, 2024) and v1.4 (May 3, 2024), the latter of which upgraded the game to Unreal Engine 5.4.1 for performance improvements. Notably, the May 3, 2024 patch (the most recent developer communication on record) includes a social media callout directing players to "follow Xenoplasis Games for news about a new game in the upcoming weeks." This signals that the developer has shifted focus to a new project rather than continuing to develop Ontotis. There are no announced DLC, expansions, or future content for Ontotis, no unreleased items in the DLC list, and no post-launch major content drops — only quality-of-life and polish patches. The game launched as a complete narrative experience and has received no indication of planned additional story content. With development attention moving to a new title as of May 2024, Ontotis appears to be a finished, self-contained game.
Evidence
Patch v1.4 upgrades the game to Unreal Engine 5.4.1 for performance improvements. The post closes by directing players to follow Xenoplasis Games on social media for news about a new game — indicating the developer's focus has moved to a new project.
news post · May 3, 2024 source development ending
high
Patch v1.1 adds 3 languages, a new achievement, and various gameplay improvements one month after launch.
news post · Nov 6, 2023 source development ongoing
medium

Media

Details

Publisher
Xenoplasis Games
Achievements
9
Platform
Windows
Controller
partial support
Steam Deck
Playable
Players
Single-player

About this game

Embark on a haunting journey in Ontotis, where chilling secrets of the past shape a story that blurs reality and nightmare in this psychological horror experience.

Key Features

❖ Engage in an immersive gameplay experience that blends an atmospheric environment with chilling horror elements.

❖ Solve intricate puzzles to progress the story and unlock secrets.

❖ Piece together the mystery by discovering scattered items and pages that hold crucial clues within the game.

❖ Explore different endings based on the items used and mysteries unraveled.

Story

Grieving the recent loss of his wife, Robert seeks peace and solitude by taking a remote job as a caretaker for abandoned properties. But his quiet assignment is about to become a nightmare.

As a severe storm rolls in, cutting off the outside world, you are tasked with securing one final property on a desolate hill. What starts as a routine checklist of chores quickly spirals into terror. Unexplained phenomena plague the halls, and a mysterious, human-like figure seems deeply connected to the house. As you investigate the dark corners of the property, you must piece together the tragic history of the former residents to survive the night and confront the sinister presence lurking in the shadows.

Last evaluated Jun 20, 2026
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