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ZERO PROTOCOL −48% 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.
Positive Now
84%513 reviews on Steam
30-Day Trend
no change+11 reviews since 21 Oct 2026
Last 12 Months
75%−9 pts on 84% since launch
Reviews Last Month
9October 2026, −8% on the 12-month average
Reviews And Players By Month| Month | Positive | Negative | Average players |
|---|---|---|---|
| October 2026 | 8 | 1 | 1 |
| September 2026 | 4 | 3 | — |
| August 2026 | 1 | 1 | — |
| July 2026 | 7 | 3 | — |
| June 2026 | 6 | 3 | — |
| May 2026 | 8 | 3 | — |
| April 2026 | 4 | 4 | — |
| March 2026 | 8 | 3 | — |
| February 2026 | 9 | 1 | — |
| January 2026 | 9 | 3 | — |
| December 2025 | 9 | 1 | — |
| November 2025 | 6 | 0 | — |
| October 2025 | 16 | 6 | — |
| September 2025 | 14 | 1 | — |
| August 2025 | 4 | 2 | — |
| July 2025 | 14 | 2 | — |
| June 2025 | 13 | 1 | — |
| May 2025 | 17 | 2 | — |
| April 2025 | 2 | 1 | — |
| March 2025 | 11 | 4 | — |
| February 2025 | 12 | 1 | — |
| January 2025 | 22 | 4 | — |
| December 2024 | 36 | 5 | — |
| November 2024 | 41 | 5 | — |
| October 2024 | 82 | 13 | — |
| September 2024 | 69 | 9 | — |
Review SentimentToo few recent reviews to call a trend18 in the last three finished months
Review ScoreSteady at 84% positive since 21 Oct 2026+11 reviews, 513 in all
| From | Positive | Reviews |
|---|---|---|
| 12 Nov 2026 | 84% | 513 |
| 4 Nov 2026 | 84% | 511 |
| 3 Nov 2026 | 84% | 512 |
| 30 Oct 2026 | 84% | 508 |
| 25 Oct 2026 | 84% | 505 |
| 21 Oct 2026 | 84% | 502 |
Steam’s review score each time our store check saw it change, since 21 Oct 2026. How we count
Notable Months| Notable | Month | Reviews | Positive |
|---|---|---|---|
| Busiest month | October 2024 | 95 | 86% |
| Most positive | September 2024 | 78 | 88% |
| Least positive | October 2024 | 95 | 86% |
Best and worst counts months with at least 50 reviews.
| Month | Last 3 months | That month | Reviews | All so far |
|---|---|---|---|---|
| October 2026 | — | — | 9 | 84% |
| September 2026 | — | — | 7 | 84% |
| August 2026 | 67% | — | 2 | 84% |
| July 2026 | 70% | — | 10 | 84% |
| June 2026 | 64% | — | 9 | 85% |
| May 2026 | 67% | — | 11 | 85% |
| April 2026 | 72% | — | 8 | 85% |
| March 2026 | 79% | — | 11 | 86% |
| February 2026 | 84% | — | 10 | 86% |
| January 2026 | 86% | — | 12 | 86% |
| December 2025 | 82% | — | 10 | 87% |
| November 2025 | 84% | — | 6 | 87% |
| October 2025 | 79% | 73% | 22 | 86% |
| September 2025 | 86% | — | 15 | 87% |
| August 2025 | 86% | — | 6 | 87% |
| July 2025 | 90% | — | 16 | 87% |
| June 2025 | 89% | — | 14 | 87% |
| May 2025 | 81% | — | 19 | 87% |
| April 2025 | 81% | — | 3 | 87% |
| March 2025 | 83% | — | 15 | 87% |
| February 2025 | 88% | — | 13 | 88% |
| January 2025 | 88% | 85% | 26 | 87% |
| December 2024 | 87% | 88% | 41 | 88% |
| November 2024 | 88% | 89% | 46 | 88% |
| October 2024 | 87% | 86% | 95 | 87% |
| September 2024 | 88% | 88% | 78 | 88% |
