Project: When Was the Golden Era of Video Games?

Video games are big business: the global gaming market is projected to be worth more than $300 billion by 2027 according to Mordor Intelligence. With so much money at stake, the major game publishers are hugely incentivized to create the next big hit. But are games getting better, or has the golden age of video games already passed?

In this project, you'll analyze video game critic and user scores as well as sales data for the top 400 video games released since 1977. You'll search for a golden age of video games by identifying release years that users and critics liked best, and you'll explore the business side of gaming by looking at game sales data.

Your search will involve joining datasets and comparing results with set theory. You'll also filter, group, and order data. Make sure you brush up on these skills before trying this project! The database contains two tables. Each table has been limited to 400 rows for this project, but you can find the complete dataset with over 13,000 games on Kaggle.

`game_sales` table

Column	Definition	Data Type
name	Name of the video game	`varchar`
platform	Gaming platform	`varchar`
publisher	Game publisher	`varchar`
developer	Game developer	`varchar`
games_sold	Number of copies sold (millions)	`float`
year	Release year	`int`

`reviews` table

Column	Definition	Data Type
name	Name of the video game	`varchar`
critic_score	Critic score according to Metacritic	`float`
user_score	User score according to Metacritic	`float`

`users_avg_year_rating` table

Column	Definition	Data Type
year	Release year of the games reviewed	`int`
num_games	Number of games released that year	`int`
avg_user_score	Average score of all the games ratings for the year	`float`

`critics_avg_year_rating` table

Column	Definition	Data Type
year	Release year of the games reviewed	`int`
num_games	Number of games released that year	`int`
avg_critic_score	Average score of all the games ratings for the year	`float`

Unknown integration

DataFrameavailable as

best_selling_games

variable

-- best_selling_games

SELECT *
FROM game_sales
ORDER BY games_sold DESC
LIMIT 10;

Unknown integration

DataFrameavailable as

critics_top_ten_years

variable

-- critics_top_ten_years

SELECT
	g.year,
	COUNT(c.num_games) AS num_games,
	ROUND(AVG(c.avg_critic_score),2) AS avg_critic_score
FROM
	public.game_sales AS g
INNER JOIN
	public.critics_avg_year_rating AS c
ON g.year = c.year
GROUP BY 
	g.year
HAVING 
	AVG(c.num_games) > 4
ORDER BY 
	avg_critic_score DESC
LIMIT 10;

Unknown integration

DataFrameavailable as

golden_years

variable

-- golden_years

SELECT
	u.year,
	u.num_games,
	c.avg_critic_score,
	u.avg_user_score,
	GREATEST(c.avg_critic_score, u.avg_user_score) - 
	LEAST(c.avg_critic_score, u.avg_user_score) AS diff
FROM 
	public.critics_avg_year_rating AS c
INNER JOIN
	public.users_avg_year_rating AS u
ON 
	c.year = u.year
WHERE 
	c.avg_critic_score > 9
	OR u.avg_user_score > 9
ORDER BY diff ASC;

Project: When Was the Golden Era of Video Games?

reviews table

users_avg_year_rating table

critics_avg_year_rating table

`reviews` table

`users_avg_year_rating` table

`critics_avg_year_rating` table