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.

Developer: Yiğit Çakman.

Tags: Solo, Adventure, Puzzle, Exploration.

Steam reviews: Mostly Positive (70% of 10).

Price: Free to play on Steam.

Released 2026-01-25.

Last updated 2026-02-25.

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