I've only been playing this for a short time but it is one of my favorite games of all time.
I actually found it in a backwards sort of way, by reading the devotional plans on YouVersion Bible app. I had never played a Christian video game before, mostly just Lego games like Lord of the Rings and Star Wars. The main reason I decided to get it was because of the Scarlet Man (most favorite character, absolutely!), because he is like Jesus. 
Anyway, I was quickly blown away by how great it was. The gameplay was so smooth (except when our wifi was flaky
) . I didn't know anything about steampunk style until I played this game, but I LOVE it! The costumes are beautiful and I think the real reason my sister watches while I play
. The tasks are extremely creative, there are so many things to collect, and the environments are well thought out.
The allegory was very inspiring to me, and it inspired me to view things in my real life (like cleaning) as not meaningless, but rather little tasks advancing the Kingdom. Cool thought.
And fighting alongside the Scarlet Man—so awesome! 

Finally, the customer support for this game is great!! When I asked a question I got a response in only 15 minutes. All around superb game.
One downside—I wish I could make up my own last name. Iliara Mustardtop
? But that's okay. It shows up as Iliara M., anyway. 