I just realized that this topic could be interesting for people who's not into Steam much, so i decided to give it a try and create separate thread for those stats. Before we start, i want to include several disclaimers:
1. All stats are taken from SteamSpy - https://steamspy.com/ Those numbers are not 100% accurate, but they still provides a overall picture of how some games preformed on PC market. If you want to know how SteamSpy algorithm works, read this page - https://steamspy.com/about
2. It was mentioned many times before, but those numbers doesn't fully translates in sales, they only indicates how many users bought game directly from Steam store or activated retail key. It's obviously doesn't includes DRM free sales, retail and online store shipments, which are still sales but can't be included in stats for obvious reasons. Again, owners != sales, remember that before jumping to conclusions!
3. Another reminder that those numbers doesn't include sales from other platforms like GOG, Uplay, etc.
Okay, i hope that'll be enough to keep discussion in place. So, let's see numbers for titles released in October 2017:
More than 250k
The Culling (previously in Early Access) - 593,712 ± 23,219 owners
Middle-earth: Shadow of War - 501,970 ± 21,352
Doki Doki Literature Club! (Free game, added for reasons) - 457,762 ± 20,391
Overgrowth (previously in Early Access) - 259,779 ± 15,364
50k-250k
Battle Chasers: Nightwar - 64,172 ± 7,637
Road Redemption (previously in Early Access) - 126,681 ± 10,730
A Hat in Time - 65,598 ± 7,722
Machine Made: Rebirth (previously in Early Access) - 181,346 ± 12,838
The Evil Within 2 - 102,200 ± 9,638
Gold Rush: The Game - 87,227 ± 8,904
South Park: The Fractured But Whole (Uplay) - 165,897 ± 12,279
ELEX - 114,084 ± 10,183
Bomber Crew - 72,491 ± 8,117
Wolfenstein II: The New Colossus - 153,538 ± 11,813
Assassin's Creed Origins (Uplay) - 225,316 ± 14,309
10k-50k
Sakura Gamer - 9,745 ± 2,976
Otaku's Fantasy - 48,486 ± 6,639
Dungeons 3 - 36,840 ± 5,787
WWE 2K18 - 20,202 ± 4,285
The Jackbox Party Pack 4 - 15,449 ± 3,747
Opus Magnum - 13,072 ± 3,447
Meltys Quest - 10,933 ± 3,152
Sword Art Online: Hollow Realization Deluxe Edition - 17,588 ± 3,998
Less than 10k
Holy Potatoes! What the Hell?! - 1,901 ± 1,314
Rogue Trooper Redux - 1,188 ± 1,039
Rosenkreuzstilette Freudenstachel - 1,423 ± 1,392
The Talos Principle VR - 3,803 ± 1,859
A Mortician's Tale - 1,664 ± 1,229
Spelunker Party! - 1,403 ± 1,942
Cyberia 2: Resurrection - 701 ± 1,373
The Mummy Demastered - 711 ± 984
Yomawari: Midnight Shadows - 1,664 ± 1,229
Nights of Azure 2: Bride of the New Moon - 5,467 ± 2,229
Less than 1 week since release date
Spintires: MudRunner - 71,778 ± 8,077
Bubsy: The Woolies Strike Back - 701 ± 1,373
Zwei: The Ilvard Insurrection - 2,490 ± 1,841
I tried to list every notable release of October, but there is a chance that i missed some titles, feel free to send PM if you think so. Okay, i also gathered some stats month ago on Old Forum and here is how owners numbers changed for September 2017 releases:
Changes from September (according to my post from Old Forum)
Divinity: Original Sin 2 - 846,599 ± 27,719 (+ ~177k owners)
PRO EVOLUTION SOCCER 2018 - 83,662 ± 8,720 (+ ~22k)
Dishonored: Death of the Outsider - 85,325 ± 8,807 (+ ~11k)
NBA 2K18 - 180,633 ± 12,812 (+ ~39k)
Project CARS 2 - 90,317 ± 9,060 (+ ~18k)
Cook, Serve, Delicious! 2!! - 31,848 ± 5,380 (+ ~9k)
Marvel vs. Capcom: Infinite - 35,889 ± 5,712 (+ ~12k)
SteamWorld Dig 2 - 18,539 ± 4,105 (+ ~2k)
Danganronpa V3: Killing Harmony - 38,979 ± 5,952 (+ ~14k)
RAID: World War II - 14,023 ± 3,570 (no change)
Hob - 46,347 ± 6,491 (+ ~16k)
RUINER - 39,454 ± 5,989 (+ ~9k)
Songbringer - 10,695 ± 3,118 (+ ~5k)
Tokyo Dark - 12,834 ± 3,415 (+ ~4k)
Accel World VS. Sword Art Online Deluxe Edition - 10,695 ± 3,118 (+ ~3k)
WRC 7 FIA World Rally Championship - 10,695 ± 3,118 (+ ~3k)
The Journey Down: Chapter Three - 4,040 ± 1,916 (+ ~1k)
The LEGO NINJAGO Movie Video Game - 4,991 ± 2,130 (+ ~4k)
BLUE REFLECTION - 5,229 ± 2,180 (+ ~3k)
Killer Instinct - 14,974 ± 3,689 (+ ~2k)
RollerCoaster Tycoon Classic - 14,498 ± 3,630 (+ ~10k)
Total War: WARHAMMER II - 500,781 ± 21,326 (+ ~150k)
Cuphead - 867,276 ± 28,055 (+ ~626k)
That's it, hope those numbers were interesting for you!
1. All stats are taken from SteamSpy - https://steamspy.com/ Those numbers are not 100% accurate, but they still provides a overall picture of how some games preformed on PC market. If you want to know how SteamSpy algorithm works, read this page - https://steamspy.com/about
2. It was mentioned many times before, but those numbers doesn't fully translates in sales, they only indicates how many users bought game directly from Steam store or activated retail key. It's obviously doesn't includes DRM free sales, retail and online store shipments, which are still sales but can't be included in stats for obvious reasons. Again, owners != sales, remember that before jumping to conclusions!
3. Another reminder that those numbers doesn't include sales from other platforms like GOG, Uplay, etc.
Okay, i hope that'll be enough to keep discussion in place. So, let's see numbers for titles released in October 2017:
More than 250k
The Culling (previously in Early Access) - 593,712 ± 23,219 owners
Middle-earth: Shadow of War - 501,970 ± 21,352
Doki Doki Literature Club! (Free game, added for reasons) - 457,762 ± 20,391
Overgrowth (previously in Early Access) - 259,779 ± 15,364
50k-250k
Battle Chasers: Nightwar - 64,172 ± 7,637
Road Redemption (previously in Early Access) - 126,681 ± 10,730
A Hat in Time - 65,598 ± 7,722
Machine Made: Rebirth (previously in Early Access) - 181,346 ± 12,838
The Evil Within 2 - 102,200 ± 9,638
Gold Rush: The Game - 87,227 ± 8,904
South Park: The Fractured But Whole (Uplay) - 165,897 ± 12,279
ELEX - 114,084 ± 10,183
Bomber Crew - 72,491 ± 8,117
Wolfenstein II: The New Colossus - 153,538 ± 11,813
Assassin's Creed Origins (Uplay) - 225,316 ± 14,309
10k-50k
Sakura Gamer - 9,745 ± 2,976
Otaku's Fantasy - 48,486 ± 6,639
Dungeons 3 - 36,840 ± 5,787
WWE 2K18 - 20,202 ± 4,285
The Jackbox Party Pack 4 - 15,449 ± 3,747
Opus Magnum - 13,072 ± 3,447
Meltys Quest - 10,933 ± 3,152
Sword Art Online: Hollow Realization Deluxe Edition - 17,588 ± 3,998
Less than 10k
Holy Potatoes! What the Hell?! - 1,901 ± 1,314
Rogue Trooper Redux - 1,188 ± 1,039
Rosenkreuzstilette Freudenstachel - 1,423 ± 1,392
The Talos Principle VR - 3,803 ± 1,859
A Mortician's Tale - 1,664 ± 1,229
Spelunker Party! - 1,403 ± 1,942
Cyberia 2: Resurrection - 701 ± 1,373
The Mummy Demastered - 711 ± 984
Yomawari: Midnight Shadows - 1,664 ± 1,229
Nights of Azure 2: Bride of the New Moon - 5,467 ± 2,229
Less than 1 week since release date
Spintires: MudRunner - 71,778 ± 8,077
Bubsy: The Woolies Strike Back - 701 ± 1,373
Zwei: The Ilvard Insurrection - 2,490 ± 1,841
I tried to list every notable release of October, but there is a chance that i missed some titles, feel free to send PM if you think so. Okay, i also gathered some stats month ago on Old Forum and here is how owners numbers changed for September 2017 releases:
Changes from September (according to my post from Old Forum)
Divinity: Original Sin 2 - 846,599 ± 27,719 (+ ~177k owners)
PRO EVOLUTION SOCCER 2018 - 83,662 ± 8,720 (+ ~22k)
Dishonored: Death of the Outsider - 85,325 ± 8,807 (+ ~11k)
NBA 2K18 - 180,633 ± 12,812 (+ ~39k)
Project CARS 2 - 90,317 ± 9,060 (+ ~18k)
Cook, Serve, Delicious! 2!! - 31,848 ± 5,380 (+ ~9k)
Marvel vs. Capcom: Infinite - 35,889 ± 5,712 (+ ~12k)
SteamWorld Dig 2 - 18,539 ± 4,105 (+ ~2k)
Danganronpa V3: Killing Harmony - 38,979 ± 5,952 (+ ~14k)
RAID: World War II - 14,023 ± 3,570 (no change)
Hob - 46,347 ± 6,491 (+ ~16k)
RUINER - 39,454 ± 5,989 (+ ~9k)
Songbringer - 10,695 ± 3,118 (+ ~5k)
Tokyo Dark - 12,834 ± 3,415 (+ ~4k)
Accel World VS. Sword Art Online Deluxe Edition - 10,695 ± 3,118 (+ ~3k)
WRC 7 FIA World Rally Championship - 10,695 ± 3,118 (+ ~3k)
The Journey Down: Chapter Three - 4,040 ± 1,916 (+ ~1k)
The LEGO NINJAGO Movie Video Game - 4,991 ± 2,130 (+ ~4k)
BLUE REFLECTION - 5,229 ± 2,180 (+ ~3k)
Killer Instinct - 14,974 ± 3,689 (+ ~2k)
RollerCoaster Tycoon Classic - 14,498 ± 3,630 (+ ~10k)
Total War: WARHAMMER II - 500,781 ± 21,326 (+ ~150k)
Cuphead - 867,276 ± 28,055 (+ ~626k)
That's it, hope those numbers were interesting for you!