Talk to your wife. Explain that it's important to you. Maybe she'll give it a try. But you can't convince her if it's not her thing.
My wife tried co-op games (lego star wars, etc) with me but really wasn't into it. But she respects that it's important to me and lets me have time to play, even if it's not with her.
The stupidest thing you can do is ask a bunch of nerds for advice and then try to convince her she should be into it. Talk to her instead.