This paper introduces a novel interactive floor platform for social games and entertainment involving multiple colocated users in a collaborative game environment. The interactive floor used as the prototype platform, is a 12 m2 glass surface with bottom projection and camera based tracking of limb (e.g. foot, hand, and knee) contact points. The iGameFloor platform supports tracking of limb points for more than 10 users at the same time. This paper describes the technological platform and the interaction techniques used for social gaming and entertainment. Three iGameFloor applications are discussed with the purpose of displaying the potential of the physical computer game platform. Experiences and perspectives for further development of the iGameFloor platform are discussed. Author Keywords Social gaming and entertainment, interactive floor, vision based tracking, co-located collaborative games. ACM Classification Keywords H.5 [Information Interfaces and Presentation]. H.5.1 [Multime...