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Subterrain Uncompromising Sci-Fi survival on Mars! Manage the entire colony single-handed! Craft, Research, Explore and Fight against evolving mutants. Vast open world and randomly generated levels to explore! Can you survive long enough to escape the horror?
Players on Steam, last 48 hours| Poll | Players |
|---|---|
| 29 Oct, 19:04 UTC | 5 |
| 28 Oct, 18:59 UTC | 3 |
Player counts over time, as we observed them.
Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology
Players By Month| Month | Average | Change | Change % | Peak |
|---|---|---|---|---|
| October 2026Oct 2026 (so far) | 4 | 0 | +8.4% | 6 |
| September 2026Sept 2026 | 3 | 0 | −6.6% | 11 |
| August 2026Aug 2026 | 4 | −1 | −18.2% | 14 |
| July 2026Jul 2026 | 4 | +1 | +37.2% | 12 |
| June 2026Jun 2026 | 3 | −2 | −34.2% | 12 |
| May 2026May 2026 | 5 | 0 | −7.6% | 12 |
| April 2026Apr 2026 | 5 | 0 | +1.8% | 13 |
| March 2026Mar 2026 | 5 | +1 | +16.7% | 16 |
| February 2026Feb 2026 | 4 | −1 | −15.1% | 11 |
| January 2026Jan 2026 | 5 | +1 | +23.2% | 12 |
| December 2025Dec 2025 | 4 | −1 | −17.9% | 14 |
| November 2025Nov 2025 | 5 | +1 | +22.1% | 17 |
| October 2025Oct 2025 | 4 | +1 | +36.9% | 11 |
| September 2025Sept 2025 | 3 | −1 | −22.4% | 10 |
| August 2025Aug 2025 | 4 | 0 | −11.2% | 14 |
| July 2025Jul 2025 | 4 | 0 | +3.8% | 12 |
| June 2025Jun 2025 | 4 | +1 | +13.2% | 11 |
| May 2025May 2025 | 4 | −1 | −17.1% | 10 |
| April 2025Apr 2025 | 5 | 0 | −7% | 11 |
| March 2025Mar 2025 | 5 | +1 | +26.4% | 12 |
| February 2025Feb 2025 | 4 | −2 | −30.4% | 14 |
| January 2025Jan 2025 | 6 | +1 | +9.6% | 14 |
| December 2024Dec 2024 | 5 | +1 | +22.5% | 12 |
| November 2024Nov 2024 | 4 | −1 | −12.4% | 11 |
| Month | Average | Change | Change % | Peak |
|---|---|---|---|---|
| October 2024Oct 2024 | 5 | −2 | −25.8% | 11 |
| September 2024Sept 2024 | 6 | +1 | +13.7% | 17 |
| August 2024Aug 2024 | 6 | −4 | −39.8% | 16 |
| July 2024Jul 2024 | 9 | +1 | +5.9% | 28 |
| June 2024Jun 2024 | 9 | +3 | +43% | 32 |
| May 2024May 2024 | 6 | −2 | −20.7% | 14 |
| April 2024Apr 2024 | 8 | −10 | −56.9% | 20 |
| March 2024Mar 2024 | 18 | +12 | +224.9% | 53 |
| February 2024Feb 2024 | 6 | −1 | −15.2% | 14 |
| January 2024Jan 2024 | 6 | 0 | −2% | 14 |
| December 2023Dec 2023 | 7 | −2 | −20.5% | 18 |
| November 2023Nov 2023 | 8 | +1 | +16.5% | 20 |
| October 2023Oct 2023 | 7 | 0 | −0.6% | 28 |
| September 2023Sept 2023 | 7 | +3 | +83.3% | 24 |
| August 2023Aug 2023 | 4 | −2 | −31.2% | 11 |
| July 2023Jul 2023 | 6 | +1 | +29.3% | 14 |
| June 2023Jun 2023 | 4 | 0 | −6.8% | 12 |
| May 2023May 2023 | 5 | −1 | −21.4% | 14 |
| April 2023Apr 2023 | 6 | −1 | −10.8% | 15 |
| March 2023Mar 2023 | 7 | −1 | −10.6% | 18 |
| February 2023Feb 2023 | 8 | 0 | −2.2% | 21 |
| January 2023Jan 2023 | 8 | 0 | +0.5% | 22 |
| December 2022Dec 2022 | 8 | −2 | −17.3% | 17 |
| November 2022Nov 2022 | 9 | 0 | +2.3% | 28 |
| October 2022Oct 2022 | 9 | +2 | +29.5% | 49 |
| September 2022Sept 2022 | 7 | −3 | −28.5% | 20 |
| August 2022Aug 2022 | 10 | +1 | +5.5% | 27 |
| July 2022Jul 2022 | 9 | −2 | −21.4% | 21 |
| June 2022Jun 2022 | 12 | +5 | +64.6% | 30 |
| May 2022May 2022 | 7 | 0 | +6.6% | 17 |
| April 2022Apr 2022 | 7 | +2 | +40.8% | 22 |
| March 2022Mar 2022 | 5 | −1 | −22.7% | 14 |
| February 2022Feb 2022 | 6 | −1 | −18% | 18 |
| January 2022Jan 2022 | 8 | +1 | +8.6% | 18 |
| December 2021Dec 2021 | 7 | 0 | −7.3% | 15 |
| November 2021Nov 2021 | 7 | +1 | +11.3% | 22 |
| October 2021Oct 2021 | 7 | 0 | −1.6% | 17 |
| September 2021Sept 2021 | 7 | −1 | −14.2% | 17 |
| August 2021Aug 2021 | 8 | −7 | −47.1% | 22 |
| July 2021Jul 2021 | 15 | +4 | +30.3% | 40 |
| June 2021Jun 2021 | 11 | +2 | +14.7% | 28 |
| May 2021May 2021 | 10 | +2 | +26.3% | 25 |
| April 2021Apr 2021 | 8 | −1 | −7.6% | 19 |
| March 2021Mar 2021 | 9 | 0 | +5.3% | 26 |
| February 2021Feb 2021 | 8 | −1 | −11.9% | 18 |
| January 2021Jan 2021 | 9 | +1 | +11.5% | 21 |
| December 2020Dec 2020 | 8 | −3 | −28.9% | 19 |
| November 2020Nov 2020 | 12 | +4 | +51.4% | 41 |
| October 2020Oct 2020 | 8 | 0 | +1.6% | 34 |
| September 2020Sept 2020 | 8 | +1 | +7.5% | 21 |
| August 2020Aug 2020 | 7 | −3 | −31.5% | 20 |
| July 2020Jul 2020 | 10 | +1 | +13.2% | 29 |
| June 2020Jun 2020 | 9 | −2 | −15.9% | 25 |
| May 2020May 2020 | 11 | −6 | −36% | 24 |
| April 2020Apr 2020 | 17 | +8 | +79.9% | 42 |
| March 2020Mar 2020 | 9 | 0 | −5.3% | 39 |
| February 2020Feb 2020 | 10 | −5 | −35.9% | 25 |
| January 2020Jan 2020 | 15 | +2 | +13.5% | 43 |
| December 2019Dec 2019 | 14 | +4 | +46.8% | 35 |
| November 2019Nov 2019 | 9 | +1 | +7.1% | 24 |
| October 2019Oct 2019 | 9 | +1 | +16.3% | 21 |
| September 2019Sept 2019 | 7 | −3 | −26.4% | 20 |
| August 2019Aug 2019 | 10 | −3 | −22.5% | 26 |
| July 2019Jul 2019 | 13 | +3 | +28.6% | 39 |
| June 2019Jun 2019 | 10 | 0 | −2.4% | 35 |
| May 2019May 2019 | 10 | +1 | +15.8% | 23 |
| April 2019Apr 2019 | 9 | −2 | −19.3% | 27 |
| March 2019Mar 2019 | 11 | −4 | −26.7% | 27 |
| February 2019Feb 2019 | 15 | +2 | +14.6% | 35 |
| January 2019Jan 2019 | 13 | −1 | −7.6% | 29 |
| December 2018Dec 2018 | 14 | −2 | −10.2% | 32 |
| November 2018Nov 2018 | 16 | +3 | +23.9% | 39 |
| October 2018Oct 2018 | 13 | −1 | −9.4% | 30 |
| September 2018Sept 2018 | 14 | −2 | −11.6% | 36 |
| August 2018Aug 2018 | 16 | −10 | −39% | 36 |
| July 2018Jul 2018 | 26 | −4 | −13.9% | 72 |
| June 2018Jun 2018 | 31 | −6 | −17.5% | 77 |
| May 2018May 2018 | 37 | −72 | −66.2% | 87 |
| April 2018Apr 2018 | 109 | +99 | +972.9% | 559 |
| March 2018Mar 2018 | 10 | −4 | −28.1% | 24 |
| February 2018Feb 2018 | 14 | −2 | −12% | 51 |
| January 2018Jan 2018 | 16 | +2 | +11.9% | 45 |
| December 2017Dec 2017 | 14 | +3 | +24% | 36 |
| November 2017Nov 2017 | 12 | −1 | −10.5% | 41 |
| October 2017Oct 2017 | 13 | −11 | −45% | 43 |
| September 2017Sept 2017 | 24 | +15 | +169.6% | 101 |
| August 2017Aug 2017 | 9 | −7 | −46.1% | 22 |
| July 2017Jul 2017 | 16 | +3 | +18.3% | 46 |
| June 2017Jun 2017 | 14 | +3 | +31% | 55 |
| May 2017May 2017 | 11 | −14 | −56.9% | 26 |
| April 2017Apr 2017 | 24 | +15 | +152.1% | 95 |
| March 2017Mar 2017 | 10 | −6 | −40.1% | 24 |
| February 2017Feb 2017 | 16 | −10 | −38.3% | 32 |
| January 2017Jan 2017 | 26 | +7 | +37.3% | 65 |
| December 2016Dec 2016 | 19 | +3 | +15% | 54 |
| November 2016Nov 2016 | 17 | +3 | +21% | 49 |
| October 2016Oct 2016 | 14 | −23 | −62.3% | 45 |
| September 2016Sept 2016 | 36 | +17 | +87.2% | 130 |
| August 2016Aug 2016 | 19 | −16 | −45.5% | 100 |
| July 2016Jul 2016 | 36 | +13 | +55.5% | 104 |
| June 2016Jun 2016 | 23 | +6 | +32.7% | 93 |
| May 2016May 2016 | 17 | +7 | +61.4% | 41 |
| April 2016Apr 2016 | 11 | −1 | −12.2% | 32 |
| March 2016Mar 2016 | 12 | −26 | −68.4% | 32 |
| February 2016Feb 2016 | 39 | −9 | −19.3% | 103 |
| January 2016Jan 2016 | 48 | +40 | +506.1% | 233 |
| December 2015Dec 2015 | 8 | +1 | +8% | 22 |
| November 2015Nov 2015 | 7 | −1 | −12.9% | 20 |
| October 2015Oct 2015 | 8 | +4 | +81.6% | 20 |
| September 2015Sept 2015 | 5 | +2 | +62.9% | 16 |
| August 2015Aug 2015 | 3 | +1 | +45.1% | 8 |
| July 2015Jul 2015 | 2 | −2 | −54.5% | 7 |
| June 2015Jun 2015 | 4 | +1 | +31.2% | 17 |
| May 2015May 2015 | 3 | +3 | +308.7% | 13 |
| April 2015Apr 2015 | 1 | — | — | 10 |
Average and peak concurrent players each month, and the change in average players from the month before. Months before October 2026 are from a licensed historical archive.
