In this episode of The .NET Show, we talk with Lance Olson and Erik Olson, two of the developers that have spent a lot of time developing "Terrarium," a multiplayer ecosystem game developed using the .NET Framework. We discuss with them some of the challenges they faced building the peer-to-peer infrastructure. Since this application actually transmits code from one machine to another, we also discuss how to take full advantage of the security model of the .NET Framework. The .NET Show: Peer-to-Peer you need Windows Media Player 6.x or greater