If anyone, perhaps inspired by XCom, fancies a bit more turn-based action, GOG.com have a weekend sale on strategy & wargames. My pick of the bunch would be S2: Silent Storm Gold Edition, a World War II(ish) game without the strategic layer of XCom but with lashings of turn-based fun. There’s also the even more XCom-y UFO games, IL-2 Sturmovik for flight simmery and a few others.