Iron Danger lacks the polish or depth to appeal much beyond that interesting concept. A lot of people will have fun with Iron Danger, but I could also see it being a game that many load up and ultimately bounce off of.
There's a lot to like in GreedFall. It ticks many of the most important boxes an RPG should. It makes you care about the characters and the world, all while giving you a sense that you can actually impact those things.