Can the Steam registration cause problems if I buy the game in the UK (in a store, not on Steam) and want to play it while I'm in Europe? Is Civ5 also multilingual out of the box, as Civ4 was?
Q: Can the Steam registration cause problems if I buy the game in the UK (in a store, not on Steam) and want to play it while I'm in Europe?
A: No need to activate in the country of purchase. You can activate the code anywhere you have a connection to Steam.
Q: Is Civ5 also multilingual out of the box, as Civ4 was?
A: If the game is purchased in the UK via a retail box then it is English only. If the game is purchased elsewhere in Europe, the game includes English/French/German/Italian/Spanish.