KELDER
Trapped in a sinister post-Soviet basement, uncover the truth behind dark experiments and eerie anomalies. Solve puzzles, find keys, and survive against terrifying entities as you explore this atmospheric survival horror. Can you escape the depths of the KELDER?
Last Updated: 8/28/2025
| Steam Price | $9.99 |
| Release Date | 8/15/2025 |
| Developers | |
| Publisher | THOs Dev |
| Steam App Id | 2973450 |
KELDER
Trapped in a sinister post-Soviet basement, uncover the truth behind dark experiments and eerie anomalies. Solve puzzles, find keys, and survive against terrifying entities as you explore this atmospheric survival horror. Can you escape the depths of the KELDER?
Last Updated: 8/28/2025
- Windows
- Mac
- Linux
About KELDER
KELDER is an Indie, and Adventure game developed by THOs Dev, and Mad Muffin Studios. On 8/15/2025, it was released on the Steam Store by THOs Dev.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
It also supports 7 languanges in-game including English, French, German, Spanish (Spain), and Dutch. Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, KELDER supports the following features:
- Single-player
- Steam Achievements
- Family Sharing
From the Steam community, KELDER has been tagged with the following user tags:
- Exploration
- Survival Horror
- Atmospheric
- Multiple Endings
- Story Rich
- Realistic
- Walking Simulator
- Psychological Horror
- First-Person
- Immersive
- Gore
- Action-Adventure
- Mystery
- Horror
- Hidden Object
- Indie
- Thriller
- Adventure
- Action
- Singleplayer
Media & Sceenshots
Watch the featured video for KELDER and see the latest screenshots from the Steam Store.
Related Packages
KELDER is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
Supported Languages and Localizations
KELDER is available in 7 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| French | Yes | No | Yes |
| German | Yes | No | Yes |
| Spanish (Spain) | Yes | No | Yes |
| Dutch | Yes | No | Yes |
| Russian | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
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Features & Categories
Frequently Asked Questions
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.
KELDER data has been sourced from:
- Valve Corporation. (2025, August 28). KELDER on Steam. Steam Store.
- Valve Corporation. (2025, August 28). KELDER. Steam Community Hub.