Base-building?

Dragon Age: Inquisition is a great game, but it isn't what you're looking for. Base-building is extremely limited, and you are either playing your protagonist ignoring everything else or micromanaging your characters.

XCOM: Enemy Unknown with Enemy Within expansion. Bear in mind that it is not the original XCOMs. It is a spiritual successor, and while it has some flaws (mostly the combat RNG and cheap ways you lose nations, again the fault of the RNG), it is a solid game in its own right.

Also, give Divinity: Original Sin a look. It is very much the most classic RPG to come out in decades.