All evidence points to this being a real game:
From the link where you can pre-order the game:
Become Jesus Christ, the famous man on Earth – in this highly realistic simulation game. Pray like Him for getting superpower, perform famous miracles like Him from Bible like casting demons, healing and feeding people, resurrection and more in “I am Jesus Christ”.
Heh.
Yes, the company does seem to be for real; their Steam page lists quite a sizable number of games. Whether they are any good, I can’t say; they seem to be rather… uh, niche interest sort of games. “Thief Simulator,” “Plane Mechanic Simulator,” “Cooking Simulator,” “Ultimate Fishing Simulator,” “House Flipper,” so on. Sounds about like the “Progressive Park” of video games, but to each their own. That said, there are some good comments on YouTube: