1. Steam Games Data (Sales and users)
By: Tian Mao

2. steam Steam was created in 2003 as the platform for Counter-strike
Written in: C++(PC), Java(Android), support 28 languages
World’s biggest PC game platform(75% of pc games)

3. Top 10 games rank by estimate revenue
Game Name
Type
New owner
Est. revenue
 Sid Meier's Civilization VI
Turn-based strategy
1,529,898
$78,913,020
Grand Theft Auto V
TPS, Action-adventure
2,308,366
$73,632,680
Counter-Strike: Global Offensive
FPS
6,733,576
$67,192,990
DARK SOULS III
Action role-playing
1,335,722
$63,630,874
DOOM(Doom 4)
1,608,681
$55,433,183
Rise of the Tomb Raider
Action-adventure
1,303,957
$54,898,279
Total War: WARHAMMER
1,042,843
$54,792,482
XCOM 2
Turn-based tactics
1,102,603
$51,479,482
Tom Clancy's The Division
Massively multiplayer online game
1,100,449
$49,093,877
No Man's Sky
Action-adventure, survival
823,363
$43,274,942
Mean: $
Standard Deviation:

4. Top 12 games rank by actual players
Player NO.
Game Name
Type
Price
Player (Launched In 2 weeks) 1
Dota 2
MOBA
Free
10,342,927 ±93,791 2
Counter - Strike: Global Offensive
FPS
$14.99
9,013,697 ±87,717 3
Team Fortress 2
1,969,373 ±41,395 4
Grand Theft Auto V
TPS, Action-adventure
$59.99
1,926,377 ±40,943 5
Rocket League
Sports
$19.99
1,514,938 ±36,329 6
Garry's Mod
Sandbox
$9.99
1,446,555 ±35,503 7
Paladins
1,441,066 ±35,435 8
Unturned
Survival, FPS, TPS, Zombies
1,165,249 ±31,876 9
Left 4 Dead 2
FPS, Survival horror
983,658 ±29,294 10
H1Z1: King of the kill
Survival
933,800 ±28,544 11
 Sid Meier's Civilization V
Turn-based strategy
$29.99
756,783 ±25,703 12
The Elder Scrolls V: Skyrim
Action role-playing
744,661 ±25,496
Mean:
Standard Deviation:

5. TOP 5 GAMES sort by Z-score (est.revenue)
1. Sid Meier’s Civilization VI Z-SCORE:
2. Grand Auto Theft V Z-SCORE:
3. Counter-Strike Global Offensive Z-SCORE:
4. DARK SOULS III Z-SCORE:
5. DOOM (Doom 4) Z-SCORE:

6. Factors affect the data
The release date of the Game
The company made the Game
The quality of the Game
The advertisement of the Game
The type of the Game
The price of the Game

7. Z-SCORE RANKING Players always know the best
Players are the best advertisement for the game
People would pay for a game no matter how expansive it is, since the game is impressive.
The best seller, especially for games, are always the best game in that type.

8. Q1: IF A COMPANY WANT TO INVEST A GAME WHICH THE ACTUAl PLAYER IS ABOVE 2,000,000, WHICH IS THE PERCENTAGE of the games have more then 2,000,000 players in past 2 weeks?
Z-SCORE:
The area of Z-Score appear above is which is 58.23%
So there are 58.23% of games have more then 2,000,00 players in past 2 weeks

9. Q2: When it comes to the revenue of the games, Gabe Newell want to know what is the percentage that A game earn more then the mean according to the chart
Game Name
Type
New owner
Est. revenue
 Sid Meier's Civilization VI
Turn-based strategy
1,529,898
$78,913,020
Grand Theft Auto V
TPS, Action-adventure
2,308,366
$73,632,680
Counter-Strike: Global Offensive
FPS
6,733,576
$67,192,990
DARK SOULS III
Action role-playing
1,335,722
$63,630,874
DOOM(Doom 4)
1,608,681
$55,433,183
Rise of the Tomb Raider
Action-adventure
1,303,957
$54,898,279
Total War: WARHAMMER
1,042,843
$54,792,482
XCOM 2
Turn-based tactics
1,102,603
$51,479,482
Tom Clancy's The Division
Massively multiplayer online game
1,100,449
$49,093,877
No Man's Sky
Action-adventure, survival
823,363
$43,274,942
Mean: $
4 games earn more then the mean
4/10 = 40%

10. Q3：A game Company want to research the percentage of the games on STEAM have the revenue below $65,432,100
For this graph, Z-score is
The shaded area is which is %

11. SOURCES Image: http://www.pcgamer.com/steam-user-breaks-level-1000/
Sites: 1.
2. steamspy.com 3. 4. 5. 6.