According to Radiant, "This has been the strangest week of one of the strangest months of my life. Including PayPal money of $26,900 we have just passed $550,000 and earned the Upgraded Music stretch goal! Thanks everyone for the continued support."
The next stretch goal, at $600K, will add three playable kingdoms.
The Kickstarter fundraising will end on the 30th May at 1:00am EDT (6am GMT). Players can back Stonehearth.