The Silent Expedition Echo Protocol
Short description
Co-op first-person horror for 1–4 players. You and your friends are trapped in endless liminal backrooms where nothing makes sense. Explore, find keys and almond water, and work together to evade unstoppable monsters and escape.
- Developer
- Psycho Dream Studio
- Publisher
- Psycho Dream Studio
- Release
- Wed, Mar 18, 2026
- Price
- $4.99
- Reviews
- 4
- Positive
- 100%
- Followers
- n/a
- Owners (estimated)
- 0 – 20K
- Concurrent players
- n/a
- Genres
- Action, Adventure, Indie, Early Access
- Features
- Multi-player, Co-op, Online Co-op, Playable without Timed Input, Save Anytime, Stereo Sound
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $4.99 launch price — there is not enough price history for this game to weight the copies by what they actually sold for. Before Steam's cut, VAT and refunds. How these numbers are calculated.
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Media
History
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1 data points going back to Aug 5, 2026 lie outside the 90-day window of your plan. Plus shows the complete history.