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ProtoStone ProtoStone is a card game with local split-screen multiplayer (Offline), 4 different classes and over 150 different cards to collect.
Positive Now
57%14 reviews on Steam
30-Day Trend
—Not enough history yet (since 21 Oct 2026)
Last 12 Months
60%positive, 15 reviews
Reviews Last Month
1November 2025, −36% on the 9-month average
Reviews By MonthPositive and negative reviews each month, April 2021 to November 2025
| Month | Positive | Negative | Share positive |
|---|---|---|---|
| November 2025 | 1 | 0 | 100% |
| February 2025 | 0 | 1 | 0% |
| April 2024 | 1 | 0 | 100% |
| March 2024 | 1 | 0 | 100% |
| February 2024 | 1 | 0 | 100% |
| May 2023 | 0 | 1 | 0% |
| March 2023 | 1 | 0 | 100% |
| July 2021 | 1 | 1 | 50% |
| June 2021 | 1 | 1 | 50% |
| April 2021 | 2 | 2 | 50% |
Steam’s own monthly review graph, read each month. How we count
Review SentimentReview ScoreSteady at 57% positive since 22 Oct 202614 reviews when we first checked
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 | April 2021 | 4 | 50% |
Best and worst counts months with at least 50 reviews.
