The second annual ACM SIGGRAPH Sandbox Symposium on videogames calls for papers, hot games and panel proposals. We are looking for work that describes or illustrates innovative research in videogame theory, practice and criticism. Video games are a singular technological medium, comparable in cultural impact to the telephone, television or the Internet. What are the creative, technological and commercial challenges facing this medium in the future? How do we relate great stories that leverage advances in technology? What is the continuing impact of this medium on individuals and society?