Grab your helmets and hit the track—Go Kart Island, the debut game from Grumpy Pizza Games, is officially out now on Steam, complete with a 20% launch discount off its regular price of $9.99 / €8.99 / £7.99. Players can also jump into a free demo featuring the first five story events before buying. Go Kart Island takes the familiar thrills of kart racing and blends them with open-world exploration and a lighthearted story mode. You’ll follow Lachlan the highland cow, a determined racer chasing his dream of becoming Go Kart Champion. But there’s a catch—the Island’s shady Mayor demands…