ZERO PROTOCOL
Short description
In this immersive sci-fi thriller, you will experience the atmosphere of classic 3D games as you solve puzzles, follow an intriguing non-linear storyline, and engage in battles with monsters.
- Developer
- R_Games
- Publisher
- R_Games
- Release
- Thu, Sep 26, 2024
- Price
- $11.99
- Reviews
- 503
- Positive
- 84%
- Followers
- 3,463
- Owners (estimated)
- 0 – 20K
- Concurrent players
- 1
- Genres
- Action, Adventure
- Features
- Full controller support, Steam Trading Cards
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by $10.59, the average price these copies actually sold for — weighted from the price history rather than taken from the $11.99 launch price. That is 12% below list price on average. Before Steam's cut, VAT and refunds. How these numbers are calculated.
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Media
History
11 data points since Jul 27, 2026. Gaps mean nothing changed — the value carries forward.
The revenue curve is an estimate, not a measurement. It is the only calculated series here: each interval takes the review growth of that period, multiplies it by the sales-per-review factor and by the price actually charged at the time, and adds the result to the running total. That is why it climbs more slowly through discount periods than the review curve next to it. The last point is the same figure quoted above — gross, before Steam's cut, VAT and refunds. How these numbers are calculated.
The blurred area is the rest of the history. 124 further data points reach back to Sep 26, 2024 — your plan shows the last 90 days of it. How far each series in particular reaches is written on its own chart; not every one of them goes back that far. The shape in the blurred area is decoration, not data: the figures are not in this page at all. Plus unlocks the complete series.
The dashed line marks Jul 28, 2026, when steamlense started measuring. Everything to its left was backfilled from public sources — monthly review counts from Steam, price changes from IsThereAnyDeal, monthly player averages from SteamCharts. Those are monthly figures, so the curve is coarser there — one point a month instead of one a day.
Lowest recorded price: $5.39 on Aug 31, 2026.
Similar games that found an audience
Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with ZERO PROTOCOL. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.
| Image | Name | Studio | Shared | Tag difference | Price | Reviews | Positive | Released | Revenue (estimated) |
|---|---|---|---|---|---|---|---|---|---|
|
Ikai | Endflame 3 titles | 5 | − First-Person + Horror | $14.99 | 218 | 80% | Tue, Mar 29, 2022 | $142k $63k – $722k |
|
Outlast | Red Barrels 3 titles | 4 | − Exploration − Story Rich + Horror + Gore | $14.99 | 105,199 | 97% | Wed, Sep 04, 2013 | $71m $31.5m – $75m |
|
What Remains of Edith Finch | Giant Sparrow 2 titles | 4 | − Survival Horror − Psychological Horror + Walking Simulator + Mystery | $19.99 | 47,482 | 95% | Mon, Apr 24, 2017 | $20m $19m – $20m |
|
SOMA | Frictional Games 9 titles | 4 | − First-Person − Exploration + Horror + Dark | $5.99 80% |
47,164 | 96% | Mon, Sep 21, 2015 | $63.7m $60m – $113m |
|
SILENT HILL 2 | Bloober Team SA 15 titles | 4 | − First-Person − Exploration + Horror + Psychological | $69.99 | 44,305 | 95% | Mon, Oct 07, 2024 | $70m $62m – $70m |
There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.