Best overall co-op game for couples
It Takes Two
If we know nothing else about a couple, this is the safest place to start. Every level is built around two people doing different things at the same time, and the mechanics change so often that neither of you ever ends up as luggage. It is one of the very few games where the design assumes there are exactly two of you and never forgets it.
Officially verified: EA's Friend's Pass lets one owner invite the second player online for the full adventure, so you do not need two purchases to play it together online.
Before you play: It asks for more 3D platforming and camera comfort than most "casual couples game" lists admit. If one of you has never moved a character in 3D space, expect a real learning curve in the first hour.
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