Protocol X
In the semi-open world horror game Protocol X, you must uncover a dark past in 1975 Germany, survive deadly experiments, save your family and the Weltel family, and race against time in a historical story shaped by multiple endings.
Last Updated: 4/11/2026
| Release Date | 1/25/2026 |
| Developer | Yiğit Çakman |
| Publisher | Yiğit Çakman |
| Steam App Id | 4213730 |
Protocol X
In the semi-open world horror game Protocol X, you must uncover a dark past in 1975 Germany, survive deadly experiments, save your family and the Weltel family, and race against time in a historical story shaped by multiple endings.
Last Updated: 4/11/2026
- Windows
- Mac
- Linux
About Protocol X
Protocol X is an Adventure, Indie, Action, and Free to Play game developed by Yiğit Çakman. On 1/25/2026, it was released on the Steam Store by Yiğit Çakman.
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, Protocol X supports the following features:
- Family Sharing
- Single-player
- Narrated Game Menus
From the Steam community, Protocol X has been tagged with the following user tags:
- 3D Platformer
- Destruction
- Political
- Free to Play
- Historical
- Puzzle
- 3D
- First-Person
- Stealth
- 1980s
- Time Travel
- Underground
- Politics
- Indie
- Adventure
- Action
- Singleplayer
- Exploration
Media & Sceenshots
Watch the featured video for Protocol X and see the latest screenshots from the Steam Store.
Related Packages
Protocol X is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
| Name | Price | Actions |
|---|---|---|
| Protocol X | $2.99 | View |
Supported Languages and Localizations
Protocol X is available in 3 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| Turkish | Yes | No | Yes |
| English | Yes | No | Yes |
| German | Yes | No | Yes |
Discover Similar Games
Find a new game to play just like Protocol X 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 Protocol X.
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Soures & References
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Protocol X data has been sourced from:
- Valve Corporation. (2026, April 11). Protocol X on Steam. Steam Store.
- Valve Corporation. (2026, April 11). Protocol X. Steam Community Hub.