I made a crossword for a (brunch) wedding (it went with the brunch theme), and used one of the freebee game generators. But I thought it was pretty ugly and I'm a graphics snob so I once I had the layout I rebuilt it in Illustrator. You can buy all the Adobe stuff month to month now on the website. I think it's like $40 for a month's access? I can't remember, this was back in spring. If you're going to be making a ton of stuff for the wedding it might be worth it.
Also, I like the idea of a word game on the program. Why not? It's fun and cute. If people don't want to do it, they don't have to.