Grid infrastructure are already being used in the on-line gaming sector to provide large-scale game hosting in a business context. However, the game platforms and infrastructures used do not take advantage of the potential for rich business networks to support indefinite scaling within single game instances, or to simplify the problem of managing the quality of experience and access rights for end customers. The European edutain@grid research project is developing an infrastructure for realising such business networks using bipartite Service Level Agreements. This paper describes the analysis of business value chains and SLA terms for the initial implementation, and provides insights into how these should be formulated, and what challenges this presents to Grid infrastructure implementers.