This game demonstration is from the MIND Research Institute, a non-profit education research and publishing organization, that recently received a $500,000 grant from Cisco to develop game-based instruction for students in middle school and high school math.
There is a lovely tour of the software for prealgebra in the MIND webiste.

Possibly Related Posts:
- Contemporary Algebra Collection (new resources 2/4/2019)
- Bringing the Real World to Your Math Class Every Day
- Group Exploration in Math
- Level Up: Video Games for Learning Algebra
- Coming out of the Closet: I’m a Game Designer!