About Testimonium

Testimonium is an Adventure, and Indie game developed by Andrii Sotnyk. On 10/31/2025, it was released on the Steam Store by NECRONOMISOFT.

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, Testimonium supports the following features:

• Single-player
• Family Sharing

From the Steam community, Testimonium has been tagged with the following user tags:

• Gothic
• Dark
• Short
• Surreal
• Stylized
• Puzzle
• Walking Simulator
• 3D
• Abstract
• Psychological Horror
• First-Person
• Experimental
• Linear
• Old School
• Faith
• Horror
• Indie
• Thriller
• Adventure
• Singleplayer

Media & Sceenshots

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

Related Packages

Testimonium is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.

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Find a new game to play just like Testimonium through our curated lists. Steambase uses Steam's User Tag and Genre system (and other game stats) to curate a list of the best and most loved games similar to Testimonium.

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.

Testimonium data has been sourced from:

• Valve Corporation. (2025, November 24). Testimonium on Steam. Steam Store.
• Valve Corporation. (2025, November 24). Testimonium. Steam Community Hub.