trying out XCOM Enemy Unknown (Steam sales) before deciding whether to buy XCOM 2

holy s**t it was a hard game, got my arse kicked so many times (doesn't matter if I had experienced in turn-based game like Civ 5 before), but those moment when you grit your teeth and complete a very difficult mission against all odds really is satisfying, will definitely buy XCOM 2 once I complete the first one (if I manage to finish it that is)