This document outlines an workshop on game design improv. It introduces the concept of game design improv and describes several design challenges that participants will complete during the workshop to explore key design principles in a playful way. The challenges include designing a game from existing intellectual property, modifying an existing game concept to be multiplayer, designing a board game simulating a Civil War battle with an unconventional victory condition, and creating a game using only index cards. Contact information is provided for the workshop leaders.