About ONTOS

ONTOS is an Adventure, and Action game. It was released on the Steam Store by Frictional Games.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, ONTOS supports the following features:

• Full controller support
• Playable without Timed Input
• Stereo Sound
• Single-player
• Steam Achievements
• Family Sharing
• Adjustable Difficulty
• HDR available

Media & Sceenshots

Watch the featured video for ONTOS and see the latest screenshots from the Steam Store.

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Soures & References

Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.

ONTOS data has been sourced from:

• Valve Corporation. (2025, December 12). ONTOS on Steam. Steam Store.
• Valve Corporation. (2025, December 12). ONTOS. Steam Community Hub.
• Frictional Games. (2025, December 12). ONTOS. ONTOS.