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Positive Now
81%102 reviews on Steam
30-Day Trend
—Not enough history yet (since 21 Oct 2026)
Last 12 Months
83%+3 pts on 81% since launch
Reviews Last Month
1April 2026, +140% on the 12-month average
Reviews By MonthPositive and negative reviews each month, December 2014 to April 2026
| Month | Positive | Negative | Share positive |
|---|---|---|---|
| April 2026 | 1 | 0 | 100% |
| November 2025 | 1 | 0 | 100% |
| September 2025 | 0 | 0 | — |
| August 2025 | 1 | 0 | 100% |
| June 2025 | 0 | 0 | — |
| February 2025 | 0 | 1 | 0% |
| January 2025 | 0 | 0 | — |
| December 2024 | 1 | 0 | 100% |
| October 2024 | 1 | 0 | 100% |
| September 2024 | 0 | 0 | — |
| July 2024 | 0 | 0 | — |
| June 2024 | 0 | 0 | — |
| May 2024 | 0 | 0 | — |
| April 2024 | 1 | 0 | 100% |
| February 2024 | 2 | 0 | 100% |
| December 2023 | 2 | 0 | 100% |
| October 2023 | 0 | 0 | — |
| September 2023 | 0 | 0 | — |
| July 2023 | 2 | 0 | 100% |
| June 2023 | 1 | 0 | 100% |
Steam’s own monthly review graph, read each month. How we count
Review SentimentReview ScoreSteady at 81% positive since 21 Oct 2026102 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 | July 2015 | 10 | 60% |
Best and worst counts months with at least 50 reviews.
| May 2023 |
| 1 |
| 0 |
| 100% |
| April 2023 | 0 | 0 | — |
| January 2023 | 1 | 0 | 100% |
| November 2022 | 0 | 0 | — |
| August 2022 | 0 | 0 | — |
| July 2022 | 1 | 0 | 100% |
| June 2022 | 1 | 0 | 100% |
| May 2022 | 0 | 0 | — |
| April 2022 | 0 | 1 | 0% |
| January 2022 | 1 | 0 | 100% |
| December 2021 | 0 | 0 | — |
| September 2021 | 1 | 1 | 50% |
| April 2021 | 1 | 0 | 100% |
| March 2021 | 0 | 0 | — |
| October 2020 | 1 | 0 | 100% |
| July 2020 | 0 | 0 | — |
| May 2020 | 1 | 0 | 100% |
| April 2020 | 0 | 0 | — |
| March 2020 | 0 | 0 | — |
| February 2020 | 2 | 0 | 100% |
| January 2020 | 0 | 0 | — |
| December 2019 | 0 | 0 | — |
| November 2019 | 0 | 0 | — |
| October 2019 | 0 | 0 | — |
| September 2019 | 0 | 1 | 0% |
| August 2019 | 0 | 0 | — |
| July 2019 | 1 | 0 | 100% |
| June 2019 | 3 | 0 | 100% |
| May 2019 | 0 | 0 | — |
| April 2019 | 2 | 0 | 100% |
| January 2019 | 2 | 0 | 100% |
| December 2018 | 1 | 0 | 100% |
| November 2018 | 0 | 0 | — |
| October 2018 | 0 | 1 | 0% |
| August 2018 | 0 | 0 | — |
| July 2018 | 1 | 0 | 100% |
| June 2018 | 1 | 0 | 100% |
| May 2018 | 0 | 2 | 0% |
| April 2018 | 1 | 0 | 100% |
| March 2018 | 0 | 0 | — |
| February 2018 | 0 | 0 | — |
| January 2018 | 0 | 0 | — |
| December 2017 | 0 | 0 | — |
| November 2017 | 2 | 0 | 100% |
| October 2017 | 0 | 0 | — |
| August 2017 | 1 | 0 | 100% |
| July 2017 | 0 | 1 | 0% |
| June 2017 | 0 | 1 | 0% |
| January 2017 | 1 | 1 | 50% |
| December 2016 | 1 | 0 | 100% |
| November 2016 | 2 | 1 | 67% |
| October 2016 | 1 | 0 | 100% |
| August 2016 | 2 | 0 | 100% |
| June 2016 | 0 | 0 | — |
| May 2016 | 3 | 0 | 100% |
| April 2016 | 2 | 0 | 100% |
| March 2016 | 1 | 0 | 100% |
| February 2016 | 4 | 0 | 100% |
| January 2016 | 1 | 0 | 100% |
| December 2015 | 0 | 0 | — |
| November 2015 | 0 | 1 | 0% |
| October 2015 | 1 | 1 | 50% |
| September 2015 | 2 | 1 | 67% |
| August 2015 | 1 | 2 | 33% |
| July 2015 | 6 | 4 | 60% |
| June 2015 | 2 | 0 | 100% |
| May 2015 | 1 | 0 | 100% |
| April 2015 | 6 | 2 | 75% |
| March 2015 | 2 | 0 | 100% |
| February 2015 | 5 | 0 | 100% |
| January 2015 | 5 | 0 | 100% |
| December 2014 | 3 | 0 | 100% |
iO is an abstract physics platformer about size and speed. Grow bigger and smaller in order to solve some of the trickiest puzzles. Reach the exit as quickly as possible and grab a gold medal as your reward!
