The Dutchman’s sensational form saw him win his fifth successive tournament as he scooped the £20,000 first prize in Wiener Neustadt.
The world number two, who has not tasted defeat for 24 games, produced two ton-plus finishes in the final to add another trophy to his rapidly growing collection.
“I’m very happy to have won this,” van Gerwen told the PDC’s official website.
“It was a very difficult win because although I played well during the tournament, I didn’t play as well as I can.
“Sometimes that’s good as well because you know you can win when you’re not at your best, like I did in the final but it’s great to win another title.
“We both expected a great game because we had great semi-finals, but it didn’t happen in the final.”
‘Mighty Mike’ had seen off Alan Tabern and Wayne Jones to reach Sunday’s last 16 stage, where he claimed a 6-3 triumph against Ronnie Baxter.
The Premier League champion defeated Brendan Dolan in the quarter-finals before a 6-2 success over Colin Lloyd earned him a decider against King.
Finishes of 110 and 146 helped him maintain his incredible winning streak as he triumphed 6-3.
But the 24-year-old, who also won the inaugural Dubai Darts Masters last week revealed that he is taking nothing for granted ahead of the UK Open, which takes place in Bolton from Thursday until Sunday.
He added: “Unstoppable is a big word, but I know that even if I’m behind in a game I’m still confident enough to win it.
“I like the format of the UK Open and I think this year I can do some damage there.
“I’ve not been brilliant in the UK Open but before the European Darts Open in Dusseldorf I didn’t have a great record in European Tour events either and I’m doing well in them now.”
By Chris Murphy