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Zero One / 杀戮世界 『Hello 殺戮 world -ZERO ONE-』To punish juvenile delinquents who brutally murdered her sister, genius game maker made a perfect revenge plan... This is a text adventure game of Full-Voice, which uses various branch options to complete four different endings. Is it salvation or destruction that awaits the hero at last? That's a question.
Positive Now
66%12 reviews on Steam
30-Day Trend
—Not enough history yet (since 21 Oct 2026)
Last 12 Months
73%+6 pts on 67% since launch
Reviews Last Month
0March 2025, −100% on the 12-month average
Reviews By MonthPositive and negative reviews each month, March 2019 to March 2025
| Month | Positive | Negative | Share positive |
|---|---|---|---|
| March 2025 | 0 | 0 | — |
| November 2024 | 0 | 1 | 0% |
| July 2023 | 1 | 0 | 100% |
| June 2023 | 1 | 0 | 100% |
| January 2023 | 0 | 0 | — |
| April 2021 | 1 | 0 | 100% |
| August 2020 | 1 | 0 | 100% |
| March 2020 | 0 | 1 | 0% |
| February 2020 | 2 | 0 | 100% |
| January 2020 | 0 | 1 | 0% |
| December 2019 | 1 | 0 | 100% |
| June 2019 | 1 | 0 | 100% |
| May 2019 | 0 | 0 | — |
| April 2019 | 0 | 0 | — |
| March 2019 | 0 | 1 | 0% |
Steam’s own monthly review graph, read each month. How we count
Review SentimentReview ScoreSteady at 66% positive since 24 Oct 202612 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 | February 2020 | 2 | 100% |
Best and worst counts months with at least 50 reviews.
