Ghost Giant was developed by Zoink Games, a Swedish studio from Gothenburg whose previous games include FE, Stick It to the Man, Zombie Vikings, and Flipping Death. Directed by Olov Redmalm and written by Sara Bergmark Elfgren, it was developed natively for PSVR (2019) before arriving on Oculus Quest in February 2020. The Quest version is widely regarded as the superior version due to the headset's superior tracking, the absence of a wire, and the ability to lean and twist freely.

You are the titular ghost giant: an enormous, translucent presence looming over a toy-scale diorama world. You are invisible to everyone except Louis, an anthropomorphic cat boy found crying by a lake in the fictional town of Sancourt. The world is built in the aesthetic of handmade cardboard cutouts and painted wooden stages. You interact by leaning forward, reaching your enormous hands into the scene, lifting rooftops to peer inside buildings, moving objects, cranking mechanisms, and making it rain by clashing clouds together. Louis, initially terrified of you, becomes your companion and guide to the town.