This would fit perfectly in a puzzle game; it would work pretty well for the "building defenses" between waves in a Tower Defense game; or, if you softened everything up a bit and delayed the attack of the pitched percussion (to eliminate the hard hits), I reckon it could work well in an exploratory RPG (like Skyrim).
I love your use of dissonance; the string melodies are particularly noteworthy in how they create an almost Discovery Channel-like sense of wonder. The brass stabs could use a bit of work (maybe a little more reverb, maybe layered with some more instruments) as they sound less realistic when they're compared to the harpsichord, pitched and unpitched percussion, and strings playing behind them.