The primary purpose of the project was to evaluate and refine the Land.Info decision support system (DSS). Land.Info is a 3D immersive video game-based DSS that casts users in the role of designer, allowing them to design park infrastructure in virtual city spaces and receive real-time feedback based on their decisions (e.g. cost, amount of rainwater stored, carbon sequestration, etc. Ultimately Land.Info empowers citizens with decision support for the design of open spaces. This project builds on an existing prototype of the Land.Info DSSThat was developed by a previous team. The current prototype requires user testing and further refinement to become an intuitive and fully functioning DSS to aid users. This project was built upon a previous team’s final deliverables. We continued exploring what are the usability issues of the current version of the DSS; the severity of those issues and recommend prioritizing the major issues to bridge the the gap between the current gaming experience with an ideal one.