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Alien Swarm Co-operative multiplayer game and complete code base available for free.
Positive Now
94%21,663 reviews on Steam
30-Day Trend
no change+12 reviews since 21 Oct 2026
Last 12 Months
91%−4 pts on 94% since launch
Reviews Last Month
36October 2026, −12% on the 12-month average
Reviews And Players By Month| Month | Positive | Negative | Average players |
|---|---|---|---|
| November 2026 | 5 | 0 | 29 |
| October 2026 | 34 | 2 | 15 |
| September 2026 | 42 | 2 | 16 |
| August 2026 | 31 | 7 | 25 |
| July 2026 | 42 | 5 | 19 |
| June 2026 | 32 | 7 | 15 |
| May 2026 | 31 | 0 | 14 |
| April 2026 | 41 | 4 | 16 |
| March 2026 | 44 | 1 | 17 |
| February 2026 | 31 | 4 | 16 |
| January 2026 | 39 | 4 | 20 |
| December 2025 | 36 | 6 | 14 |
| November 2025 | 36 | 3 | 15 |
| October 2025 | 35 | 6 | 15 |
| September 2025 | 34 | 5 | 15 |
| August 2025 | 38 | 8 | 15 |
| July 2025 | 36 | 2 | 14 |
| June 2025 | 42 | 4 | 17 |
| May 2025 | 44 | 5 | 16 |
| April 2025 | 28 | 5 | 13 |
| March 2025 | 41 | 5 | 13 |
| February 2025 | 43 | 4 | 14 |
| January 2025 | 42 | 2 | 13 |
| December 2024 | 35 | 2 | 13 |
| November 2024 | 44 | 3 | 12 |
| October 2024 | 34 | 6 | 13 |
| September 2024 | 46 | 7 | 14 |
| August 2024 | 52 | 1 | 16 |
| July 2024 | 53 | 7 | 15 |
| June 2024 | 35 | 5 | 14 |
| May 2024 | 42 | 6 | 13 |
| April 2024 | 47 | 3 | 524 |
| March 2024 | 59 | 3 | 518 |
| February 2024 | 68 | 6 | 381 |
| January 2024 | 65 | 6 | 73 |
| December 2023 | 59 | 9 | 41 |
| November 2023 | 53 | 2 | 37 |
| October 2023 | 48 | 5 | 47 |
| September 2023 | 54 | 5 | 77 |
| August 2023 | 58 | 6 | 60 |
| July 2023 | 56 | 3 | 57 |
| June 2023 | 52 | 6 | 56 |
| May 2023 | 41 | 6 | 58 |
| April 2023 | 53 | 5 | 55 |
| March 2023 | 55 | 5 | 60 |
| February 2023 | 66 | 5 | 60 |
| January 2023 | 64 | 6 | 61 |
| December 2022 | 57 | 5 | 61 |
| November 2022 | 51 | 4 | 59 |
| October 2022 | 37 | 3 | 63 |
| September 2022 | 47 | 3 | 72 |
| August 2022 | 75 | 8 | 74 |
| July 2022 | 79 | 8 | 92 |
| June 2022 | 64 | 4 | 69 |
| May 2022 | 79 | 4 | 73 |
| April 2022 | 77 | 6 | 78 |
| March 2022 | 52 | 4 | 73 |
| February 2022 | 60 | 3 | 64 |
| January 2022 | 79 | 7 | 64 |
| December 2021 | 62 | 6 | 59 |
| November 2021 | 44 | 4 | 61 |
| October 2021 | 51 | 6 | 27 |
| September 2021 | 63 | 2 | 26 |
| August 2021 | 73 | 7 | 61 |
| July 2021 | 64 | 8 | 61 |
| June 2021 | 64 | 5 | 63 |
| May 2021 | 74 | 7 | 70 |
| April 2021 | 72 | 10 | 53 |
| March 2021 | 98 | 7 | 41 |
| February 2021 | 64 | 6 | 36 |
| January 2021 | 94 | 5 | 47 |
| December 2020 | 76 | 10 | 33 |
| November 2020 | 65 | 9 | 32 |
| October 2020 | 57 | 8 | 31 |
| September 2020 | 44 | 6 | 28 |
| August 2020 | 74 | 5 | 33 |
| July 2020 | 72 | 10 | 31 |
| June 2020 | 76 | 5 | 38 |
| May 2020 | 103 | 13 | 202 |
| April 2020 | 91 | 11 | 48 |
| March 2020 | 70 | 6 | 39 |
| February 2020 | 55 | 7 | 33 |
| January 2020 | 56 | 1 | 26 |
| December 2019 | 56 | 0 | 22 |
| November 2019 | 72 | 6 | 27 |
| October 2019 | 48 | 9 | 28 |
| September 2019 | 43 | 5 | 31 |
| August 2019 | 61 | 3 | 42 |
| July 2019 | 138 | 15 | 272 |
| June 2019 | 177 | 19 | 39 |
| May 2019 | 65 | 4 | 33 |
| April 2019 | 46 | 4 | 35 |
| March 2019 | 56 | 5 | 41 |
| February 2019 | 61 | 2 | 37 |
| January 2019 | 68 | 9 | 43 |
| December 2018 | 68 | 10 | 48 |
| November 2018 | 52 | 6 | 34 |
| October 2018 | 43 | 5 | 35 |
| September 2018 | 56 | 5 | 35 |
| August 2018 | 63 | 10 | 56 |
| July 2018 | 81 | 6 | 50 |
| June 2018 | 68 | 9 | 44 |
| May 2018 | 71 | 8 | 54 |
| April 2018 | 75 | 9 | 57 |
| March 2018 | 92 | 15 | 83 |
| February 2018 | 97 | 12 | 76 |
| January 2018 | 113 | 14 | 73 |
| December 2017 | 127 | 11 | 71 |
| November 2017 | 112 | 9 | 54 |
| October 2017 | 90 | 9 | 59 |
| September 2017 | 102 | 3 | 63 |
| August 2017 | 115 | 12 | 69 |
| July 2017 | 141 | 23 | 76 |
| June 2017 | 157 | 21 | 89 |
| May 2017 | 163 | 13 | 109 |
| April 2017 | 211 | 17 | 135 |
| March 2017 | 208 | 18 | 134 |
| February 2017 | 226 | 11 | 154 |
| January 2017 | 253 | 12 | 161 |
| December 2016 | 214 | 13 | 138 |
| November 2016 | 313 | 10 | 125 |
| October 2016 | 147 | 15 | 127 |
| September 2016 | 168 | 7 | 134 |
| August 2016 | 209 | 13 | 170 |
| July 2016 | 323 | 15 | 204 |
| June 2016 | 236 | 11 | 164 |
| May 2016 | 210 | 12 | 159 |
| April 2016 | 181 | 14 | 152 |
| March 2016 | 209 | 17 | 148 |
| February 2016 | 221 | 15 | 160 |
| January 2016 | 276 | 17 | 168 |
| December 2015 | 267 | 14 | 150 |
| November 2015 | 209 | 9 | 123 |
| October 2015 | 201 | 8 | 131 |
| September 2015 | 177 | 9 | 118 |
| August 2015 | 203 | 9 | 153 |
| July 2015 | 212 | 11 | 155 |
| June 2015 | 235 | 16 | 159 |
| May 2015 | 183 | 12 | 127 |
| April 2015 | 217 | 14 | 134 |
| March 2015 | 191 | 10 | 144 |
| February 2015 | 222 | 9 | 165 |
| January 2015 | 269 | 25 | 172 |
| December 2014 | 306 | 23 | 162 |
| November 2014 | 282 | 18 | 161 |
| October 2014 | 274 | 10 | 168 |
| September 2014 | 252 | 16 | 161 |
| August 2014 | 330 | 18 | 202 |
| July 2014 | 391 | 19 | 218 |
| June 2014 | 456 | 19 | 191 |
| May 2014 | 300 | 8 | 171 |
| April 2014 | 267 | 9 | 171 |
| March 2014 | 318 | 8 | 167 |
| February 2014 | 378 | 16 | 188 |
| January 2014 | 530 | 17 | 202 |
| December 2013 | 590 | 19 | 179 |
| November 2013 | 132 | 2 | 176 |
| October 2013 | 63 | 1 | 205 |
| September 2013 | 53 | 0 | 211 |
| August 2013 | 68 | 0 | 261 |
| July 2013 | 84 | 1 | 209 |
| June 2013 | 78 | 3 | 222 |
| May 2013 | 66 | 3 | 200 |
| April 2013 | 58 | 1 | 200 |
| March 2013 | 56 | 1 | 243 |
| February 2013 | 43 | 1 | 271 |
| January 2013 | 65 | 2 | 278 |
| December 2012 | 76 | 1 | 244 |
| November 2012 | 59 | 0 | 226 |
| October 2012 | 72 | 0 | 241 |
| September 2012 | 61 | 0 | 267 |
| August 2012 | 74 | 2 | 319 |
| July 2012 | 180 | 2 | 347 |
| June 2012 | 51 | 2 | — |
| May 2012 | 53 | 1 | — |
| April 2012 | 65 | 0 | — |
| March 2012 | 45 | 0 | — |
| February 2012 | 41 | 0 | — |
| January 2012 | 98 | 0 | — |
| December 2011 | 491 | 3 | — |
| November 2011 | 58 | 0 | — |
| October 2011 | 62 | 4 | — |
| September 2011 | 73 | 0 | — |
| August 2011 | 114 | 2 | — |
| July 2011 | 293 | 3 | — |
| June 2011 | 94 | 0 | — |
| May 2011 | 81 | 3 | — |
| April 2011 | 114 | 0 | — |
| March 2011 | 106 | 3 | — |
| February 2011 | 102 | 2 | — |
| January 2011 | 132 | 2 | — |
| December 2010 | 251 | 2 | — |
| November 2010 | 167 | 3 | — |
| October 2010 | 12 | 0 | — |
Reviews Per DayReview SentimentHolding steady. 91% of reviews from August to October 2026 were positive, against 89% in the 12 months before.118 reviews against 492; a 1-point change is within what chance gives at these counts
Review ScoreSteady at 94% positive since 21 Oct 2026+12 reviews, 21,663 in all
| From | Positive | Reviews |
|---|---|---|
| 7 Nov 2026 | 94% | 21,663 |
| 5 Nov 2026 | 94% | 21,662 |
| 4 Nov 2026 | 94% | 21,660 |
| 3 Nov 2026 | 94% | 21,661 |
| 31 Oct 2026 | 94% | 21,656 |
| 28 Oct 2026 | 94% | 21,654 |
| 25 Oct 2026 | 94% | 21,650 |
| 21 Oct 2026 | 94% | 21,651 |
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 | December 2013 | 609 | 97% |
| Most positive | April 2011 | 114 | 100% |
| Least positive | October 2019 |
Reviews By Language| Language | Reviews | Share | Positive | vs All |
|---|---|---|---|---|
| English | 10,342 | 94% | 0 pts | |
| Russian | 3,815 | 95% | +1 pts | |
| Spanish (Spain) | 1,326 | 95% | +1 pts | |
| Chinese (Simplified) | 1,145 | 96% | +2 pts | |
| Polish | 754 | 95% | +1 pts | |
| German | 735 | 97% | +3 |
Positive and negative reviews a day. Read from Steam .
No review bombs in the last 90 days.
Days a game got far more negative Steam reviews than usual, mostly negative ones: what players call a review bomb.
Source: Steam store, store.steampowered.com/appreviewhistogram. Full methodology
| Month | Last 3 months | That month | Reviews | All so far |
|---|---|---|---|---|
| November 2026 | 95% | — | 5 | 94% |
| October 2026 | 91% | 94% | 36 | 94% |
| September 2026 | 89% | 95% | 44 | 94% |
| August 2026 | 85% | 82% | 38 | 94% |
| July 2026 | 90% | 89% | 47 | 94% |
| June 2026 | 90% | 82% | 39 | 94% |
| May 2026 | 96% | 100% | 31 | 94% |
| April 2026 | 93% | 91% | 45 | 94% |
| March 2026 | 93% | 98% | 45 | 94% |
| February 2026 | 88% | 89% | 35 | 94% |
| January 2026 | 90% | 91% | 43 | 94% |
| December 2025 | 88% | 86% | 42 | 94% |
| November 2025 | 88% | 92% | 39 | 94% |
| October 2025 | 85% | 85% | 41 | 94% |
| September 2025 | 88% | 87% | 39 | 94% |
| August 2025 | 89% | 83% | 46 | 94% |
| July 2025 | 92% | 95% | 38 | 94% |
| June 2025 | 89% | 91% | 46 | 94% |
| May 2025 | 88% | 90% | 49 | 94% |
| April 2025 | 89% | 85% | 33 | 94% |
| March 2025 | 92% | 89% | 46 | 94% |
| February 2025 | 94% | 91% | 47 | 94% |
| January 2025 | 95% | 95% | 44 | 94% |
| December 2024 | 91% | 95% | 37 | 94% |
| November 2024 | 89% | 94% | 47 | 94% |
| October 2024 | 90% | 85% | 40 | 94% |
| September 2024 | 91% | 87% | 53 | 94% |
| August 2024 | 92% | 98% | 53 | 94% |
| July 2024 | 88% | 88% | 60 | 94% |
| June 2024 | 90% | 88% | 40 | 94% |
| May 2024 | 93% | 88% | 48 | 94% |
| April 2024 | 94% | 94% | 50 | 94% |
| March 2024 | 93% | 95% | 62 | 94% |
| February 2024 | 90% | 92% | 74 | 94% |
| January 2024 | 91% | 92% | 71 | 95% |
| December 2023 | 91% | 87% | 68 | 95% |
| November 2023 | 93% | 96% | 55 | 95% |
| October 2023 | 91% | 91% | 53 | 95% |
| September 2023 | 92% | 92% | 59 | 95% |
| August 2023 | 92% | 91% | 64 | 95% |
| July 2023 | 91% | 95% | 59 | 95% |
| June 2023 | 90% | 90% | 58 | 95% |
| May 2023 | 90% | 87% | 47 | 95% |
| April 2023 | 92% | 91% | 58 | 95% |
| March 2023 | 92% | 92% | 60 | 95% |
| February 2023 | 92% | 93% | 71 | 95% |
| January 2023 | 92% | 91% | 70 | 95% |
| December 2022 | 92% | 92% | 62 | 95% |
| November 2022 | 93% | 93% | 55 | 95% |
| October 2022 | 92% | 93% | 40 | 95% |
| September 2022 | 91% | 94% | 50 | 95% |
| August 2022 | 92% | 90% | 83 | 95% |
| July 2022 | 93% | 91% | 87 | 95% |
| June 2022 | 94% | 94% | 68 | 95% |
| May 2022 | 94% | 95% | 83 | 95% |
| April 2022 | 94% | 93% | 83 | 95% |
| March 2022 | 93% | 93% | 56 | 95% |
| February 2022 | 93% | 95% | 63 | 95% |
| January 2022 | 92% | 92% | 86 | 95% |
| December 2021 | 91% | 91% | 68 | 95% |
| November 2021 | 93% | 92% | 48 | 95% |
| October 2021 | 93% | 89% | 57 | 95% |
| September 2021 | 92% | 97% | 65 | 95% |
| August 2021 | 91% | 91% | 80 | 95% |
| July 2021 | 91% | 89% | 72 | 95% |
| June 2021 | 91% | 93% | 69 | 95% |
| May 2021 | 91% | 91% | 81 | 95% |
| April 2021 | 91% | 88% | 82 | 95% |
| March 2021 | 93% | 93% | 105 | 95% |
| February 2021 | 92% | 91% | 70 | 95% |
| January 2021 | 91% | 95% | 99 | 95% |
| December 2020 | 88% | 88% | 86 | 95% |
| November 2020 | 88% | 88% | 74 | 95% |
| October 2020 | 90% | 88% | 65 | 95% |
| September 2020 | 90% | 88% | 50 | 95% |
| August 2020 | 92% | 94% | 79 | 95% |
| July 2020 | 90% | 88% | 82 | 95% |
| June 2020 | 90% | 94% | 81 | 95% |
| May 2020 | 90% | 89% | 116 | 95% |
| April 2020 | 90% | 89% | 102 | 95% |
| March 2020 | 93% | 92% | 76 | 95% |
| February 2020 | 95% | 89% | 62 | 95% |
| January 2020 | 96% | 98% | 57 | 95% |
| December 2019 | 92% | 100% | 56 | 95% |
| November 2019 | 89% | 92% | 78 | 95% |
| October 2019 | 90% | 84% | 57 | 95% |
| September 2019 | 91% | 90% | 48 | 95% |
| August 2019 | 91% | 95% | 64 | 95% |
| July 2019 | 91% | 90% | 153 | 95% |
| June 2019 | 91% | 90% | 196 | 95% |
| May 2019 | 93% | 94% | 69 | 95% |
| April 2019 | 94% | 92% | 50 | 95% |
| March 2019 | 92% | 92% | 61 | 95% |
| February 2019 | 90% | 97% | 63 | 95% |
| January 2019 | 88% | 88% | 77 | 95% |
| December 2018 | 89% | 87% | 78 | 95% |
| November 2018 | 90% | 90% | 58 | 95% |
| October 2018 | 89% | 90% | 48 | 95% |
| September 2018 | 90% | 92% | 61 | 95% |
| August 2018 | 89% | 86% | 73 | 95% |
| July 2018 | 91% | 93% | 87 | 95% |
| June 2018 | 89% | 88% | 77 | 95% |
| May 2018 | 88% | 90% | 79 | 95% |
| April 2018 | 88% | 89% | 84 | 95% |
| March 2018 | 88% | 86% | 107 | 95% |
| February 2018 | 90% | 89% | 109 | 96% |
| January 2018 | 91% | 89% | 127 | 96% |
| December 2017 | 92% | 92% | 138 | 96% |
| November 2017 | 94% | 93% | 121 | 96% |
| October 2017 | 93% | 91% | 99 | 96% |
| September 2017 | 90% | 97% | 105 | 96% |
| August 2017 | 88% | 91% | 127 | 96% |
| July 2017 | 89% | 86% | 164 | 96% |
| June 2017 | 91% | 88% | 178 | 96% |
| May 2017 | 92% | 93% | 176 | 96% |
| April 2017 | 93% | 93% | 228 | 96% |
| March 2017 | 94% | 92% | 226 | 96% |
| February 2017 | 95% | 95% | 237 | 96% |
| January 2017 | 96% | 95% | 265 | 96% |
| December 2016 | 95% | 94% | 227 | 96% |
| November 2016 | 95% | 97% | 323 | 96% |
| October 2016 | 94% | 91% | 162 | 96% |
| September 2016 | 95% | 96% | 175 | 96% |
| August 2016 | 95% | 94% | 222 | 96% |
| July 2016 | 95% | 96% | 338 | 96% |
| June 2016 | 94% | 96% | 247 | 96% |
| May 2016 | 93% | 95% | 222 | 96% |
| April 2016 | 93% | 93% | 195 | 96% |
| March 2016 | 94% | 92% | 226 | 96% |
| February 2016 | 94% | 94% | 236 | 96% |
| January 2016 | 95% | 94% | 293 | 96% |
| December 2015 | 96% | 95% | 281 | 97% |
| November 2015 | 96% | 96% | 218 | 97% |
| October 2015 | 96% | 96% | 209 | 97% |
| September 2015 | 95% | 95% | 186 | 97% |
| August 2015 | 95% | 96% | 212 | 97% |
| July 2015 | 94% | 95% | 223 | 97% |
| June 2015 | 94% | 94% | 251 | 97% |
| May 2015 | 94% | 94% | 195 | 97% |
| April 2015 | 95% | 94% | 231 | 97% |
| March 2015 | 94% | 95% | 201 | 97% |
| February 2015 | 93% | 96% | 231 | 97% |
| January 2015 | 93% | 91% | 294 | 97% |
| December 2014 | 94% | 93% | 329 | 97% |
| November 2014 | 95% | 94% | 300 | 97% |
| October 2014 | 95% | 96% | 284 | 97% |
| September 2014 | 95% | 94% | 268 | 97% |
| August 2014 | 95% | 95% | 348 | 98% |
| July 2014 | 96% | 95% | 410 | 98% |
| June 2014 | 97% | 96% | 475 | 98% |
| May 2014 | 97% | 97% | 308 | 98% |
| April 2014 | 97% | 97% | 276 | 98% |
| March 2014 | 97% | 98% | 326 | 98% |
| February 2014 | 97% | 96% | 394 | 98% |
| January 2014 | 97% | 97% | 547 | 98% |
| December 2013 | 97% | 97% | 609 | 98% |
| November 2013 | 99% | 99% | 134 | 99% |
| October 2013 | 99% | 98% | 64 | 99% |
| September 2013 | 100% | 100% | 53 | 99% |
| August 2013 | 98% | 100% | 68 | 99% |
| July 2013 | 97% | 99% | 85 | 99% |
| June 2013 | 97% | 96% | 81 | 99% |
| May 2013 | 97% | 96% | 69 | 99% |
| April 2013 | 98% | 98% | 59 | 99% |
| March 2013 | 98% | 98% | 57 | 99% |
| February 2013 | 98% | 98% | 44 | 99% |
| January 2013 | 99% | 97% | 67 | 99% |
| December 2012 | 100% | 99% | 77 | 99% |
| November 2012 | 100% | 100% | 59 | 99% |
| October 2012 | 99% | 100% | 72 | 99% |
| September 2012 | 99% | 100% | 61 | 99% |
| August 2012 | 98% | 97% | 76 | 99% |
| July 2012 | 98% | 99% | 182 | 99% |
| June 2012 | 98% | 96% | 53 | 99% |
| May 2012 | 99% | 98% | 54 | 99% |
| April 2012 | 100% | 100% | 65 | 99% |
| March 2012 | 100% | 100% | 45 | 99% |
| February 2012 | 100% | 100% | 41 | 99% |
| January 2012 | 100% | 100% | 98 | 99% |
| December 2011 | 99% | 99% | 494 | 99% |
| November 2011 | 98% | 100% | 58 | 99% |
| October 2011 | 98% | 94% | 66 | 99% |
| September 2011 | 99% | 100% | 73 | 99% |
| August 2011 | 99% | 98% | 116 | 99% |
| July 2011 | 99% | 99% | 296 | 99% |
| June 2011 | 99% | 100% | 94 | 99% |
| May 2011 | 98% | 96% | 84 | 98% |
| April 2011 | 98% | 100% | 114 | 99% |
| March 2011 | 98% | 97% | 109 | 98% |
| February 2011 | 99% | 98% | 104 | 99% |
| January 2011 | 99% | 99% | 134 | 99% |
| December 2010 | 99% | 99% | 253 | 99% |
| November 2010 | 98% | 98% | 170 | 98% |
| October 2010 | — | — | 12 | 100% |
| 57 |
| 84% |
Best and worst counts months with at least 50 reviews.
| Portuguese (Brazil) | 706 | 94% | 0 pts |
|---|
| French | 526 | 95% | +1 pts |
|---|
| Korean | 455 | 92% | −2 pts |
|---|
| Turkish | 328 | 90% | −4 pts |
|---|
| Czech | 244 | 94% | 0 pts |
|---|
| Italian | 230 | 94% | 0 pts |
|---|
Steam doesn’t record where reviewers live, so this groups reviews by the language they were written in. Read weekly, last on 1 Nov 2026. How we count
A month-by-month chart of new reviews in each language starts here in early November, once we have a month of reads to compare.
