The only new entry to the list for 2020 is Debbie Bushwick, one of only two women. She is the co-founder of Team17, makers of the Worms games, and she made around £48m when she sold half her 44% stake in the company in 2018. Her current £196m fortune is said to be down to the performance of her remaining shares in the company.

In third behind King’s Morris and Zacconi are the Houser brothers Sam and Dan, whose combined £310m worth is from their phenomenally popular creation Grand Theft Auto. Grand Theft Auto V, released in 2013, is the best selling entertainment product of all time.

The remaining entries on the impressive list are Neil Taylor and family of the GAME Digital franchise, David Braben and Wendy Irvin-Braben  of Frontier Developments, and Paddy Burns and Chris van der Kuyl of 4J Studios, the studio that produces the Minecraft games.

Robert Watts, the compiler of The Sunday Times Rich List, said: “The explosion of wealth creation in the gaming world typifies the increasingly varied ways Britain’s super rich are building their fortunes. Gone are the days when the Sunday Times Rich List was dominated by money men, industrialists and property tycoons.

“Debbie Bestwick epitomises the march of these self-made men and women, who often come from modest backgrounds and amass their wealth through creating products and services many of us enjoy.”

Here's the list in full:

Rank 

Name 

Source of Wealth 

2020 Wealth 

Rise/Fall 

Mel Morris 

King Digital Entertainment  

(Candy Crush) 

£515m 

Up £15m 

Riccardo Zacconi 

King Digital Entertainment (Candy Crush) 

£410m 

Up £15m 

Sam and Dan Houser 

Take-Two Interactive 

(Grand Theft Auto) 

£310m 

Up £10m 

Neil Taylor and family 

GAME Digita 

(games retailer)l 

£230m 

No change  

Sebastian Knutsson 

King Digital Entertainment (Candy Crush) 

£225m 

Up £5m 

Debbie Bestwick 

Team17 (Worms) 

£196m 

New entry 

David Braben and Wendy Irvin-Braben 

Frontier Developments (Zoo Tycoon) 

£182m 

Up £50m 

8= 

Paddy Burns 

4J Studios (Minecraft) 

£150m 

No change 

8= 

Chris van der Kuyl 

4J Studios (Minecraft) 

£150m 

No change