Game studio Overworld, building high-quality, cross-platform multiplayer RPGs, has closed a seed round of $10M, led by Hashed alongside The Spartan Group, Sanctor Capital and Galaxy Interactive, with notable participation from Hashkey, Big Brain Holdings and Foresight Ventures, to accelerate development on a multiplayer role-playing experience enhanced with digital collectibles. Codenamed Overworld, the rich, cross-platform fantasy…