Civilization V: Gods & Kings

A major expansion to the turn-based strategy game Civilization V, Gods & Kings, was released today.
I love the Civilization series, although my current computer is only marginally capable of running it (actually, it works, but I hate having to turn down the graphics settings - it’s far too pretty for that). I plan to remedy this soon, and will be giving Gods & Kings a look shortly thereafter.
The expansion brings religion back to the series, allowing players to influence other cultures by way of proselytization. Additional units, new scenarios and a returning espionage element round out what looks to be a major upgrade to the already-great Civ experience.
Reviews (including this one by Ars Technica) thus far have been pretty positive. You can pick up Gods & Kings for $30 through Amazon or direct download via Steam.