Teased this project back in may at discord. here it is.
So a while back (end of 2014) I made little crawler for badges.
It was originally ran from there until end of 2015 until server provider kicked me out for using "too much resources".
Around year ago, I restarted the project.
Website might appear in future. Currently data collected ~ every two weeks.
Here's some picks.
Grandprix
Years of Service
This gives us accesses to total number of accounts older than one year (that is eligible for badge).
That is 40 million new accounts made approx. 7/2017 - 7/2018.
For total of 200 million accounts older than one year.
Game Collector Badge
This gives us access to how many paid games users on average own (excluding games that don't count towards the badge).
177m users own at least one paid game.
43m users own only one paid game.
Very few users own large number of games:
less than 10 million own more than 71 games.
less than 1 million own more than 350 games.
about 100 000 own more than 1000 games.
about 9 000 users own 9 000 or more games.
Theory
SUM of every (games count * users on level) = total number of games sold
up to level 323 (so everyone owning more than 323 counts to own 323)
that's approx 2 880 000 000 games.
Pillar of Community
Useless badge.
Pillar of Community 30m
Community Ambassador 8m
Community Leader 5m
Counter-Strike: Global Offensive Badge
Cheapest and most popular game badge
Chicken Chaser 2m
Brass Recruit 600k
Dusty Veteran 420k
Guardian Angel 270k
Global Sentinel 3m
I find it surprising that level 5 is highest.
Dota 2 follows similar shape
Most popular game badges
Counter-Strike: Global Offensive Badge 6296000
Dota 2 Badge 1540000
Left 4 Dead 2 Badge 1286000
Garry's Mod Badge 1175000
PAYDAY 2 Badge 1159000
Team Fortress 2 Badge 855000
Terraria Badge 850000
The Elder Scrolls V: Skyrim Badge 802000
Borderlands 2 Badge 789000
Portal 2 Badge 773000
Rust Badge 707000
Sid Meier's Civilization V Badge 558000
Rocket League Badge 553000
Tomb Raider Badge 519000
Don't Starve Badge 483000
Insurgency Badge 481000
Euro Truck Simulator 2 Badge 461000
Saints Row: The Third Badge 438000
BioShock Infinite Badge 428000
Tom Clancy's Rainbow Six Siege Badge 413000
Half-Life 2 Badge 407000
Warframe Badge 390000
Chivalry: Medieval Warfare Badge 379000
Castle Crashers Badge 376000
Saints Row IV Badge 373000
The Witcher 3: Wild Hunt Badge 367000
The Binding of Isaac Badge 348000
Don't Starve Together Badge 337000
PAYDAY: The Heist Badge 321000
Killing Floor Badge 316000
The Walking Dead Badge 307000
The Witcher 2: Assassins of Kings Enhanced Edition Badge 306000
Arma 3 Badge 304000
BattleBlock Theater Badge 291000
Torchlight II Badge 284000
Super Meat Boy Badge 279000
Wallpaper Engine Badge 273000
Hotline Miami Badge 269000
Sniper Elite V2 Badge 267000
Magicka Badge 267000
Goat Simulator Badge 266000
Dead Island Badge 265000
Company of Heroes 2 Badge 264000
Dead by Daylight Badge 261000
Trine 2 Badge 261000
Dying Light Badge 257000
Outlast Badge 256000
XCOM: Enemy Unknown Badge 255000
Batman: Arkham City GOTY Badge 253000
FTL: Faster Than Light Badge 252000
Bastion Badge 248000
Batman: Arkham Asylum GOTY Edition Badge 247000
Hitman: Absolution Badge 237000
Middle-earth™: Shadow of Mordor™ Badge 236000
Cities: Skylines Badge 231000
Age of Empires II: HD Edition Badge 223000
Stardew Valley Badge 217000
DARK SOULS™ III Badge 215000
Mount & Blade: Warband Badge 212000
Undertale Badge 193000
Counter-Strike: Global Offensive Foil Badge 192000
How to Survive Foil Badge 190000
Guns of Icarus Online Badge 190000
Life is Strange™ Foil Badge 189000
Risk of Rain Badge 187000
The Binding of Isaac: Rebirth Badge 186000
DiRT 3 Complete Edition Badge 186000
How to Survive Badge 182000
Borderlands: The Pre-Sequel Foil Badge 181000
Just Survive Badge 181000
Rising Storm/Red Orchestra 2 Multiplayer Badge 180000
Starbound Badge 178000
Dead Island Riptide Badge 178000
Batman™: Arkham Origins Badge 177000
Metro 2033 Redux Foil Badge 172000
Call of Duty: Black Ops II - Multiplayer Badge 172000
Grimm Badge 171000
Life is Strange™ Badge 168000
DOOM Badge 167000
Shadow Warrior Badge 166000
POSTAL 2 Badge 166000
SpeedRunners Badge 166000
Sanctum 2 Badge 163000
This War of Mine Badge 161000
Serious Sam 3: BFE Badge 157000
Prison Architect Badge 156000
For Honor Badge 156000
Borderlands: The Pre-Sequel Badge 156000
Crusader Kings II Badge 153000
Total War: SHOGUN 2 Badge 151000
Just Cause 3 Badge 150000
Rise of the Tomb Raider Badge 149000
Valve Employee Badge (over time)
You'd think this closely follows count of actual employees
10/2014 - end of 2015
6/2018 - 6/2019
(Collection pause was between 1/2015 and 6/2018).
So a while back (end of 2014) I made little crawler for badges.
It was originally ran from there until end of 2015 until server provider kicked me out for using "too much resources".
Around year ago, I restarted the project.
Website might appear in future. Currently data collected ~ every two weeks.
Here's some picks.
Grandprix

Years of Service
This gives us accesses to total number of accounts older than one year (that is eligible for badge).
That is 40 million new accounts made approx. 7/2017 - 7/2018.
For total of 200 million accounts older than one year.

Game Collector Badge
This gives us access to how many paid games users on average own (excluding games that don't count towards the badge).
177m users own at least one paid game.
43m users own only one paid game.
Very few users own large number of games:
less than 10 million own more than 71 games.
less than 1 million own more than 350 games.
about 100 000 own more than 1000 games.
about 9 000 users own 9 000 or more games.

Theory
SUM of every (games count * users on level) = total number of games sold
up to level 323 (so everyone owning more than 323 counts to own 323)
that's approx 2 880 000 000 games.
Pillar of Community
Useless badge.
Pillar of Community 30m
Community Ambassador 8m
Community Leader 5m
Counter-Strike: Global Offensive Badge
Cheapest and most popular game badge
Chicken Chaser 2m
Brass Recruit 600k
Dusty Veteran 420k
Guardian Angel 270k
Global Sentinel 3m

I find it surprising that level 5 is highest.
Dota 2 follows similar shape
Most popular game badges
Counter-Strike: Global Offensive Badge 6296000
Dota 2 Badge 1540000
Left 4 Dead 2 Badge 1286000
Garry's Mod Badge 1175000
PAYDAY 2 Badge 1159000
Team Fortress 2 Badge 855000
Terraria Badge 850000
The Elder Scrolls V: Skyrim Badge 802000
Borderlands 2 Badge 789000
Portal 2 Badge 773000
Rust Badge 707000
Sid Meier's Civilization V Badge 558000
Rocket League Badge 553000
Tomb Raider Badge 519000
Don't Starve Badge 483000
Insurgency Badge 481000
Euro Truck Simulator 2 Badge 461000
Saints Row: The Third Badge 438000
BioShock Infinite Badge 428000
Tom Clancy's Rainbow Six Siege Badge 413000
Half-Life 2 Badge 407000
Warframe Badge 390000
Chivalry: Medieval Warfare Badge 379000
Castle Crashers Badge 376000
Saints Row IV Badge 373000
The Witcher 3: Wild Hunt Badge 367000
The Binding of Isaac Badge 348000
Don't Starve Together Badge 337000
PAYDAY: The Heist Badge 321000
Killing Floor Badge 316000
The Walking Dead Badge 307000
The Witcher 2: Assassins of Kings Enhanced Edition Badge 306000
Arma 3 Badge 304000
BattleBlock Theater Badge 291000
Torchlight II Badge 284000
Super Meat Boy Badge 279000
Wallpaper Engine Badge 273000
Hotline Miami Badge 269000
Sniper Elite V2 Badge 267000
Magicka Badge 267000
Goat Simulator Badge 266000
Dead Island Badge 265000
Company of Heroes 2 Badge 264000
Dead by Daylight Badge 261000
Trine 2 Badge 261000
Dying Light Badge 257000
Outlast Badge 256000
XCOM: Enemy Unknown Badge 255000
Batman: Arkham City GOTY Badge 253000
FTL: Faster Than Light Badge 252000
Bastion Badge 248000
Batman: Arkham Asylum GOTY Edition Badge 247000
Hitman: Absolution Badge 237000
Middle-earth™: Shadow of Mordor™ Badge 236000
Cities: Skylines Badge 231000
Age of Empires II: HD Edition Badge 223000
Stardew Valley Badge 217000
DARK SOULS™ III Badge 215000
Mount & Blade: Warband Badge 212000
Undertale Badge 193000
Counter-Strike: Global Offensive Foil Badge 192000
How to Survive Foil Badge 190000
Guns of Icarus Online Badge 190000
Life is Strange™ Foil Badge 189000
Risk of Rain Badge 187000
The Binding of Isaac: Rebirth Badge 186000
DiRT 3 Complete Edition Badge 186000
How to Survive Badge 182000
Borderlands: The Pre-Sequel Foil Badge 181000
Just Survive Badge 181000
Rising Storm/Red Orchestra 2 Multiplayer Badge 180000
Starbound Badge 178000
Dead Island Riptide Badge 178000
Batman™: Arkham Origins Badge 177000
Metro 2033 Redux Foil Badge 172000
Call of Duty: Black Ops II - Multiplayer Badge 172000
Grimm Badge 171000
Life is Strange™ Badge 168000
DOOM Badge 167000
Shadow Warrior Badge 166000
POSTAL 2 Badge 166000
SpeedRunners Badge 166000
Sanctum 2 Badge 163000
This War of Mine Badge 161000
Serious Sam 3: BFE Badge 157000
Prison Architect Badge 156000
For Honor Badge 156000
Borderlands: The Pre-Sequel Badge 156000
Crusader Kings II Badge 153000
Total War: SHOGUN 2 Badge 151000
Just Cause 3 Badge 150000
Rise of the Tomb Raider Badge 149000
Valve Employee Badge (over time)
You'd think this closely follows count of actual employees
10/2014 - end of 2015

6/2018 - 6/2019

(Collection pause was between 1/2015 and 6/2018).