How many people own this game, and how wrong is that answer? · 1,242 games estimated · calibrated on 378 announced figures
| 1,552,380 |
| 22,452,329 to 226,147,749estimatemid 93,142,800 · prior k ×60 for 2013 and earlier |
| lowprior |
| 2 | Garry's ModGarry's Mod | 1,263,895 | 18,279,922 to 184,121,806estimatemid 75,833,700 · prior k ×60 for 2013 and earlier | lowprior |
| 3 | Left 4 Dead 2Left 4 Dead 2 | 1,056,986 | 15,287,363 to 153,979,699estimatemid 63,419,160 · prior k ×60 for 2013 and earlier | lowprior |
| 4 | Euro Truck Simulator 2Euro Truck Simulator 2 | 941,401 | 13,615,638 to 137,141,497estimatemid 56,484,060 · prior k ×60 for 2013 and earlier | lowprior |
| 5 | PAYDAY 2PAYDAY 2 | 674,586 | 9,756,649 to 98,272,398estimatemid 40,475,160 · prior k ×60 for 2013 and earlier | lowprior |
| 6 | Project ZomboidProject Zomboid | 479,255 | 6,931,544 to 69,816,951estimatemid 28,755,300 · prior k ×60 for 2013 and earlier | lowprior |
| 7 | Portal 2Portal 2 | 466,354 | 6,744,955 to 67,937,558estimatemid 27,981,240 · prior k ×60 for 2013 and earlier | lowprior |
| 8 | The Elder Scrolls V: SkyrimThe Elder Scrolls V: Skyrim | 317,780 | 4,596,104 to 46,293,582estimatemid 19,066,800 · prior k ×60 for 2013 and earlier | lowprior |
| 9 | Borderlands 2Borderlands 2 | 312,342 | 4,517,454 to 45,501,385estimatemid 18,740,520 · prior k ×60 for 2013 and earlier | lowprior |
| 10 | Arma 3Arma 3 | 295,073 | 4,267,689 to 42,985,670estimatemid 17,704,380 · prior k ×60 for 2013 and earlier | lowprior |
| 11 | Half-Life 2Half-Life 2 | 278,956 | 4,034,586 to 40,637,776estimatemid 16,737,360 · prior k ×60 for 2013 and earlier | lowprior |
| 12 | Tomb RaiderTomb Raider | 269,815 | 3,902,379 to 39,306,133estimatemid 16,188,900 · prior k ×60 for 2013 and earlier | lowprior |
| 13 | Counter-StrikeCounter-Strike | 261,611 | 3,783,723 to 38,110,990estimatemid 15,696,660 · prior k ×60 for 2013 and earlier | lowprior |
| 14 | Fallout: New VegasFallout: New Vegas | 261,437 | 3,781,206 to 38,085,642estimatemid 15,686,220 · prior k ×60 for 2013 and earlier | lowprior |
| 15 | Sid Meier's Civilization VSid Meier's Civilization V | 210,681 | 3,047,114 to 30,691,605estimatemid 12,640,860 · prior k ×60 for 2013 and earlier | lowprior |
| 16 | Grand Theft Auto IV: The Complete EditionGrand Theft Auto IV: The Complete Edition | 203,112 | 2,937,642 to 29,588,967estimatemid 12,186,720 · prior k ×60 for 2013 and earlier | lowprior |
| 17 | PortalPortal | 198,915 | 2,876,940 to 28,977,556estimatemid 11,934,900 · prior k ×60 for 2013 and earlier | lowprior |
| 18 | Counter-Strike: SourceCounter-Strike: Source | 193,133 | 2,793,314 to 28,135,246estimatemid 11,587,980 · prior k ×60 for 2013 and earlier | lowprior |
| 19 | Mount & Blade: WarbandMount & Blade: Warband | 172,110 | 2,489,255 to 25,072,655estimatemid 10,326,600 · prior k ×60 for 2013 and earlier | lowprior |
| 20 | Half-LifeHalf-Life | 163,924 | 2,370,859 to 23,880,134estimatemid 9,835,440 · prior k ×60 for 2013 and earlier | lowprior |
| 21 | Plants vs. Zombies: Game of the YearPlants vs. Zombies: Game of the Year | 155,786 | 2,253,158 to 22,694,606estimatemid 9,347,160 · prior k ×60 for 2013 and earlier | lowprior |
| 22 | BioShock InfiniteBioShock Infinite | 145,588 | 2,105,663 to 21,208,981estimatemid 8,735,280 · prior k ×60 for 2013 and earlier | lowprior |
| 23 | Castle CrashersCastle Crashers | 140,516 | 2,023 announced 24 Nov 20252,032,306 to 20,470,102estimate | lowprior |
| 24 | OutlastOutlast | 138,621 | 2,004,898 to 20,194,042estimatemid 8,317,260 · prior k ×60 for 2013 and earlier | lowprior |
| 25 | POSTAL 2POSTAL 2 | 137,604 | 1,990,189 to 20,045,887estimatemid 8,256,240 · prior k ×60 for 2013 and earlier | lowprior |
Owners are modelled, not measured: owners ≈ reviews × k, where k is learned per release-year band and US launch price tier from the figures publishers announced themselves (378 used in the fit, on the calibration page). The band is the 10th to 90th percentile of the fit’s own residuals applied to the mid (×0.24 to ×2.43), so read the range, not the mid. Reviews are Steam’s own totals today. A game with fewer than 50 reviews is not estimated, a free game is not estimated because its reviews are not sales, and an announced figure is shown before the estimate wherever one exists. Recomputed daily. How this is computed. Data by SteamPeaks.com.