DimensionM: Evolver Pre-Algebra video game from Tabula Digita

Tabula Digita has created a 3-D first-person videogame to teach pre-algebra concepts. Tabula Digita also offers a 3-D Algebra game, Dimenxian, available for PC's and Macs.

Here's some information from the website:

"DimensionM™is an immersive video game world that engages students in the instruction and learning of mathematics. Pre-algebra and algebra objectives are covered through a series of missions that bring math into a world that today's students understand. Students become so captivated in solving problems that they forget they're learning but they don't forget what they've learned."