You play it and then you mail it.
Goblin Invention is a narrative game. You are a curious goblin who has just built a golem, but something is still missing. When you roll the dice, a connection with someone special will appear. In order to share the experience with that person, we created the Goblin Invention in postal format. Just a stamp, the address and the special person can be part of your experience." - from Curious Goblin
Large color postcard - double sided