I view more math games as definitely a good thing. I would think such a game would have to display its mechanics in such a way that the player can make judgments based on them, which would be so nice to have more of (being able to reason about what a game is doing without dropping to a debugger or something).

The more MoR-types of things that get out there makes it much easier for an average person to help raise the sanity waterline. People talking as much about the mechanics of various games versus talking about LW topics seems neat.