With the average gamer spending a staggering 8.45 hours a week playing video games, and gaming being as popular as ever, have you ever wondered about the environmental impact of playing the world’s favourite video games?  

Interested to find out more, researchers at MinimumDepositCasinos.org — a certified carbon-neutral company — dug into the data from the gaming platforms Steam and Metacritic to find out which of the top-rated games produce the most CO2.*

The top-rated games fuelling CO2 Emissions:

Rank

Top Rated Games (Metacritic

Metacritic Score/100

Average Time to Complete (hrs)

CO2 (kg) Production to Complete 

1

The Elder Scrolls V: Skyrim

94

125

26.85

2

Persona 5 Royal

95

122

26.31

3

Baldur's Gate 3

96

107

23.08

4

The Elder Scrolls IV: Oblivion

94

99

21.25

5

Baldur's Gate II: Shadows of Amn

95

99

21.18

6

Elden Ring

94

97

20.86

7

The Orange Box

96

79

17.06

8

BioShock Infinite

94

56

11.94

9

Grand Theft Auto V

96

55

11.83

10

Sid Meier's Civilization II

94

53

11.36

11

Mass Effect 2

94

37

7.88

12

Disco Elysium: The Final Cut

97

34

7.28

13

Grand Theft Auto: Vice City

94

28

5.99

14

Quake

94

28

5.91

15

Diablo

94

20

4.30

16

BioShock

96

17

3.62

17

Half-Life 2

96

16

3.44

18

Portal 2

95

15

3.12

19

Half-Life

96

14

2.97

20

Grim Fandango

94

12

2.47

The Elder Scrolls V: Skyrim dominates in first place, with a lengthy completion time of 125 hours on average, this creates a startling 26.85kg of CO2 per person. The Elder Scrolls V: Skyrim, released in 2011 is a single-player role-playing game (RPG) earning a 94/100 on Metacritic, with critics regarding this dynamic game as utterly brilliant and one of the most captivating RPGs of its generation.

Taking the title for second place is 2022’s Persona 5 Royal with a completion time of 122 hours, subsequently creating 26.31kg of CO2 per player. This Japanese role-playing game (JRPG) that follows Joker and his friends as they juggle school and vigilantism proves popular with critics with a score of 95 out of 100 on Metacritic. 

The RPG, Baldur's Gate 3 lands in third place with 107 hours required to complete the game, producing 23.08kg of CO2. Bursting with adventure, magic and intricacies, this game is well-loved with a rating of 95/100 on Metacritic.

Other big names land in the top 20, including the fan favourite Grand Theft Auto V which generates 11.83kg of CO2 in the 55 hours of playtime, placing in 9th.