It's the Humble Firaxis Bundle, Bonus BTA.
It contains X-COM: Complete Pack, Sid Meier's Civilization V: Scrambled Nations Map Pack, and Sid Meier's Civilization V: Scrambled Continents Map Pack AND Sid Meier's Civilization V Expansion: Gods and Kings.

Since it requires Civ V base game for the DLCs, you should be good with the requirements for Gods and Kings. XCOM Pack contains the 5 classic XCOM games (Ufo Defence, TFTD, Apocalypse, Interceptor and Enforcer).

Good luck, guys!