True, most new big studio games are flashy, short and dumb. And most interesting titles come from small, independent developers (old Space Empires player here). Like this one.
But once in awhile, they do deliver.
Deus Ex, Human Revolution did.
Whilst not as complex in is gameplay as the original, and hampared by being cross-platform, it is a study in how to design a clever game, from the ground up. It was developed for consoles, but done so in a way that it does not annoy me, which is rare.
Big studios today do not understand that good design is what makes a game, not the wrapping. System Shock 2 is still the creepiest game around, because of meticulous level design, and brilliant use of darkness and sound. Deus Ex (original) is still the best, because of those great locations; the cathedral mission, the underwater base, Vandenberg base... UFO: Enemy Unknows is still the best because it does right all the things that XCOM does wrong.
XCOM: Enemy Unknown is a half-assed attempt, wrapped in flashy graphics, best examplified by every UFO crash site in the game being a temperate forest.
Xenonauts is promising, because it looks to be more complex. I WANT complex. Which is why, when the rest of the world plays Galactic Civilixations, I play Space Empires...